./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --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 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:26:29,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:26:29,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:26:29,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:26:29,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:26:29,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:26:29,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:26:29,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:26:29,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:26:29,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:26:29,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:26:29,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:26:29,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:26:29,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:26:29,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:26:29,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:26:29,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:26:29,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:26:29,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:26:29,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:26:29,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:26:29,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:26:29,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:26:29,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:26:29,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:26:29,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:26:29,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:26:29,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:26:29,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:26:29,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:26:29,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:26:29,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:26:29,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:26:29,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:26:29,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:26:29,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:26:29,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:26:29,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:26:29,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:26:29,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:26:29,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:26:29,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-25 20:26:29,690 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:26:29,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:26:29,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:26:29,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:26:29,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:26:29,702 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:26:29,702 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:26:29,702 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:26:29,702 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:26:29,703 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:26:29,704 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:26:29,704 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:26:29,704 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:26:29,704 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:26:29,705 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:26:29,705 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:26:29,705 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:26:29,705 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:26:29,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:26:29,706 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:26:29,707 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:26:29,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:26:29,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:26:29,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:26:29,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:26:29,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:26:29,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:26:29,709 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 20:26:29,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:26:29,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:26:29,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:26:29,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:26:29,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:26:29,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:26:29,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:26:29,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:26:29,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:26:29,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:26:29,712 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:26:29,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:26:29,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:26:29,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:26:29,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:26:29,713 INFO L138 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_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2021-11-25 20:26:30,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:26:30,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:26:30,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:26:30,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:26:30,114 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:26:30,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2021-11-25 20:26:30,193 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/data/384a143b0/e7a59ae23a604035b3c6398980626237/FLAG0e35117b8 [2021-11-25 20:26:30,850 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:26:30,851 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2021-11-25 20:26:30,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/data/384a143b0/e7a59ae23a604035b3c6398980626237/FLAG0e35117b8 [2021-11-25 20:26:31,047 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/data/384a143b0/e7a59ae23a604035b3c6398980626237 [2021-11-25 20:26:31,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:26:31,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:26:31,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:26:31,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:26:31,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:26:31,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:31,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ecdcd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31, skipping insertion in model container [2021-11-25 20:26:31,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:31,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:26:31,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:26:31,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2021-11-25 20:26:31,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2021-11-25 20:26:31,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2021-11-25 20:26:31,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2021-11-25 20:26:31,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:26:31,798 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:26:31,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2021-11-25 20:26:31,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2021-11-25 20:26:31,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2021-11-25 20:26:31,923 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2021-11-25 20:26:31,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:26:31,998 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:26:31,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31 WrapperNode [2021-11-25 20:26:31,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:26:32,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:26:32,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:26:32,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:26:32,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:32,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:32,135 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1050 [2021-11-25 20:26:32,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:26:32,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:26:32,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:26:32,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:26:32,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:32,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:32,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:32,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:32,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:32,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:32,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:32,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:26:32,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:26:32,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:26:32,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:26:32,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31" (1/1) ... [2021-11-25 20:26:32,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:26:32,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:32,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:26:32,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:26:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:26:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 20:26:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:26:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:26:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-25 20:26:32,392 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-25 20:26:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:26:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 20:26:32,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 20:26:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:26:32,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:26:32,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:26:32,393 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-25 20:26:32,393 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-25 20:26:32,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:26:32,393 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-25 20:26:32,394 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-25 20:26:32,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:26:32,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:26:32,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:26:32,681 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:26:32,682 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:26:33,556 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:26:33,943 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:26:33,943 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-25 20:26:33,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:26:33 BoogieIcfgContainer [2021-11-25 20:26:33,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:26:33,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:26:33,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:26:33,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:26:33,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:26:31" (1/3) ... [2021-11-25 20:26:33,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a61fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:26:33, skipping insertion in model container [2021-11-25 20:26:33,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:26:31" (2/3) ... [2021-11-25 20:26:33,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a61fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:26:33, skipping insertion in model container [2021-11-25 20:26:33,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:26:33" (3/3) ... [2021-11-25 20:26:33,961 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-1.i [2021-11-25 20:26:33,967 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:26:33,967 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-25 20:26:34,077 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:26:34,084 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:26:34,084 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-25 20:26:34,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-25 20:26:34,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 20:26:34,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:34,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 20:26:34,112 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 20:26:34,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:34,122 INFO L85 PathProgramCache]: Analyzing trace with hash 27392344, now seen corresponding path program 1 times [2021-11-25 20:26:34,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:34,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407836274] [2021-11-25 20:26:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:34,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:34,302 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:26:34,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161867701] [2021-11-25 20:26:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:34,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:34,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:34,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:26:34,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:26:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:34,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-25 20:26:34,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:34,666 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-11-25 20:26:34,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2021-11-25 20:26:34,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:26:34,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:26:34,884 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:26:34,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 [2021-11-25 20:26:34,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-25 20:26:34,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:34,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-11-25 20:26:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:34,945 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:26:34,945 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:34,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407836274] [2021-11-25 20:26:34,946 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:26:34,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161867701] [2021-11-25 20:26:34,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161867701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:34,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:34,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:26:34,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786216661] [2021-11-25 20:26:34,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:34,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:34,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:34,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:34,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:34,986 INFO L87 Difference]: Start difference. First operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:37,259 INFO L93 Difference]: Finished difference Result 376 states and 608 transitions. [2021-11-25 20:26:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:37,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-25 20:26:37,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:37,288 INFO L225 Difference]: With dead ends: 376 [2021-11-25 20:26:37,289 INFO L226 Difference]: Without dead ends: 206 [2021-11-25 20:26:37,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:37,327 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 64 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:37,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 420 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-25 20:26:37,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-25 20:26:37,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 153. [2021-11-25 20:26:37,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 125 states have (on average 1.256) internal successors, (157), 139 states have internal predecessors, (157), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-25 20:26:37,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2021-11-25 20:26:37,394 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 4 [2021-11-25 20:26:37,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:37,395 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2021-11-25 20:26:37,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:37,395 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2021-11-25 20:26:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 20:26:37,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:37,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:37,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:26:37,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-25 20:26:37,619 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 20:26:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:37,620 INFO L85 PathProgramCache]: Analyzing trace with hash -646465482, now seen corresponding path program 1 times [2021-11-25 20:26:37,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:37,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255830070] [2021-11-25 20:26:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:37,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:37,655 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:26:37,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675260372] [2021-11-25 20:26:37,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:37,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:37,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:37,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:26:37,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:26:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:37,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:26:37,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:37,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:37,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:26:37,953 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:37,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255830070] [2021-11-25 20:26:37,954 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:26:37,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675260372] [2021-11-25 20:26:37,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675260372] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:37,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:37,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:26:37,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363611295] [2021-11-25 20:26:37,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:37,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:37,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:37,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:37,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:37,960 INFO L87 Difference]: Start difference. First operand 153 states and 177 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-25 20:26:39,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:39,683 INFO L93 Difference]: Finished difference Result 261 states and 302 transitions. [2021-11-25 20:26:39,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:26:39,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 18 [2021-11-25 20:26:39,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:39,689 INFO L225 Difference]: With dead ends: 261 [2021-11-25 20:26:39,689 INFO L226 Difference]: Without dead ends: 259 [2021-11-25 20:26:39,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:39,691 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 106 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:39,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 443 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 20:26:39,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-25 20:26:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2021-11-25 20:26:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 216 states have (on average 1.25) internal successors, (270), 231 states have internal predecessors, (270), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-25 20:26:39,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 298 transitions. [2021-11-25 20:26:39,716 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 298 transitions. Word has length 18 [2021-11-25 20:26:39,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:39,716 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 298 transitions. [2021-11-25 20:26:39,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-25 20:26:39,717 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 298 transitions. [2021-11-25 20:26:39,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 20:26:39,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:39,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:39,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-25 20:26:39,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:39,931 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 20:26:39,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:39,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1434406572, now seen corresponding path program 1 times [2021-11-25 20:26:39,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:39,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112447331] [2021-11-25 20:26:39,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:39,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:39,976 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:26:39,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151315424] [2021-11-25 20:26:39,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:39,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:39,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:39,985 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:26:40,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:26:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:40,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:26:40,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:40,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:40,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:26:40,252 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:40,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112447331] [2021-11-25 20:26:40,252 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:26:40,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151315424] [2021-11-25 20:26:40,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151315424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:40,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:40,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:26:40,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852758898] [2021-11-25 20:26:40,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:40,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:40,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:40,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:40,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:40,255 INFO L87 Difference]: Start difference. First operand 249 states and 298 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-25 20:26:42,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:26:42,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:42,635 INFO L93 Difference]: Finished difference Result 441 states and 532 transitions. [2021-11-25 20:26:42,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:26:42,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19 [2021-11-25 20:26:42,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:42,644 INFO L225 Difference]: With dead ends: 441 [2021-11-25 20:26:42,644 INFO L226 Difference]: Without dead ends: 439 [2021-11-25 20:26:42,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:42,647 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 147 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:42,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 451 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 20:26:42,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-25 20:26:42,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2021-11-25 20:26:42,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.25) internal successors, (480), 400 states have internal predecessors, (480), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-25 20:26:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 529 transitions. [2021-11-25 20:26:42,688 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 529 transitions. Word has length 19 [2021-11-25 20:26:42,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:42,689 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 529 transitions. [2021-11-25 20:26:42,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-25 20:26:42,689 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 529 transitions. [2021-11-25 20:26:42,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 20:26:42,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:42,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:42,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-25 20:26:42,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:42,908 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 20:26:42,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:42,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1558573003, now seen corresponding path program 1 times [2021-11-25 20:26:42,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:42,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923920739] [2021-11-25 20:26:42,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:42,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:43,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:43,023 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:43,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923920739] [2021-11-25 20:26:43,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923920739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:43,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:43,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:26:43,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837908764] [2021-11-25 20:26:43,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:43,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:43,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:43,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:43,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:43,026 INFO L87 Difference]: Start difference. First operand 428 states and 529 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:45,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:45,308 INFO L93 Difference]: Finished difference Result 682 states and 842 transitions. [2021-11-25 20:26:45,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:45,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-25 20:26:45,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:45,316 INFO L225 Difference]: With dead ends: 682 [2021-11-25 20:26:45,316 INFO L226 Difference]: Without dead ends: 562 [2021-11-25 20:26:45,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:45,319 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:45,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 412 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-25 20:26:45,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-11-25 20:26:45,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 428. [2021-11-25 20:26:45,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 400 states have internal predecessors, (479), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-25 20:26:45,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 528 transitions. [2021-11-25 20:26:45,359 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 528 transitions. Word has length 24 [2021-11-25 20:26:45,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:45,360 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 528 transitions. [2021-11-25 20:26:45,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:45,360 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 528 transitions. [2021-11-25 20:26:45,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:26:45,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:45,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:45,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:26:45,363 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 20:26:45,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:45,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2115465486, now seen corresponding path program 1 times [2021-11-25 20:26:45,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:45,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852172500] [2021-11-25 20:26:45,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:45,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:45,396 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:26:45,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1659609310] [2021-11-25 20:26:45,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:45,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:45,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:45,404 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:26:45,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:26:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:45,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:26:45,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:45,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:26:45,722 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:45,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852172500] [2021-11-25 20:26:45,723 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:26:45,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659609310] [2021-11-25 20:26:45,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659609310] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:45,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:45,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:26:45,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527597874] [2021-11-25 20:26:45,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:45,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:26:45,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:45,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:26:45,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:45,727 INFO L87 Difference]: Start difference. First operand 428 states and 528 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:26:47,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:47,155 INFO L93 Difference]: Finished difference Result 454 states and 548 transitions. [2021-11-25 20:26:47,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:26:47,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 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 27 [2021-11-25 20:26:47,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:47,164 INFO L225 Difference]: With dead ends: 454 [2021-11-25 20:26:47,164 INFO L226 Difference]: Without dead ends: 453 [2021-11-25 20:26:47,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:47,165 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:47,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 304 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 20:26:47,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-25 20:26:47,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2021-11-25 20:26:47,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 394 states have (on average 1.2436548223350254) internal successors, (490), 411 states have internal predecessors, (490), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-25 20:26:47,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 545 transitions. [2021-11-25 20:26:47,204 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 545 transitions. Word has length 27 [2021-11-25 20:26:47,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:47,204 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 545 transitions. [2021-11-25 20:26:47,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:26:47,205 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 545 transitions. [2021-11-25 20:26:47,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 20:26:47,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:47,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:47,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:26:47,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:47,423 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 20:26:47,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:47,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1154920565, now seen corresponding path program 1 times [2021-11-25 20:26:47,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:47,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718989777] [2021-11-25 20:26:47,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:47,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:47,468 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:26:47,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [820053903] [2021-11-25 20:26:47,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:47,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:47,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:47,471 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:26:47,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:26:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:47,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:26:47,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:47,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:26:47,776 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:47,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718989777] [2021-11-25 20:26:47,777 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:26:47,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820053903] [2021-11-25 20:26:47,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820053903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:47,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:47,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:26:47,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398177772] [2021-11-25 20:26:47,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:47,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:26:47,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:47,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:26:47,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:47,781 INFO L87 Difference]: Start difference. First operand 443 states and 545 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:26:48,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:48,445 INFO L93 Difference]: Finished difference Result 443 states and 545 transitions. [2021-11-25 20:26:48,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:26:48,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 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 28 [2021-11-25 20:26:48,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:48,454 INFO L225 Difference]: With dead ends: 443 [2021-11-25 20:26:48,469 INFO L226 Difference]: Without dead ends: 442 [2021-11-25 20:26:48,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:48,474 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:48,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 147 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 20:26:48,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-25 20:26:48,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-11-25 20:26:48,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 394 states have (on average 1.2385786802030456) internal successors, (488), 410 states have internal predecessors, (488), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-25 20:26:48,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 543 transitions. [2021-11-25 20:26:48,512 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 543 transitions. Word has length 28 [2021-11-25 20:26:48,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:48,513 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 543 transitions. [2021-11-25 20:26:48,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:26:48,513 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 543 transitions. [2021-11-25 20:26:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 20:26:48,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:48,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:48,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 20:26:48,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:48,730 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 20:26:48,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:48,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1356353724, now seen corresponding path program 1 times [2021-11-25 20:26:48,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:48,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950234125] [2021-11-25 20:26:48,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:48,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:48,849 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:26:48,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208604575] [2021-11-25 20:26:48,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:48,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:48,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:48,859 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:26:48,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:26:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:49,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1594 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:26:49,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:49,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:49,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:26:49,576 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:49,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950234125] [2021-11-25 20:26:49,576 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:26:49,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208604575] [2021-11-25 20:26:49,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208604575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:49,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:49,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:26:49,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701160181] [2021-11-25 20:26:49,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:49,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:26:49,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:49,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:26:49,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:49,581 INFO L87 Difference]: Start difference. First operand 442 states and 543 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:51,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:26:51,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:51,469 INFO L93 Difference]: Finished difference Result 814 states and 992 transitions. [2021-11-25 20:26:51,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:26:51,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-25 20:26:51,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:51,476 INFO L225 Difference]: With dead ends: 814 [2021-11-25 20:26:51,476 INFO L226 Difference]: Without dead ends: 377 [2021-11-25 20:26:51,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:51,480 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:51,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 284 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-25 20:26:51,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-25 20:26:51,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 368. [2021-11-25 20:26:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 326 states have (on average 1.2147239263803682) internal successors, (396), 341 states have internal predecessors, (396), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-25 20:26:51,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 441 transitions. [2021-11-25 20:26:51,501 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 441 transitions. Word has length 28 [2021-11-25 20:26:51,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:51,502 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 441 transitions. [2021-11-25 20:26:51,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:51,502 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 441 transitions. [2021-11-25 20:26:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-25 20:26:51,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:51,504 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:51,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-25 20:26:51,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:51,720 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 20:26:51,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:51,720 INFO L85 PathProgramCache]: Analyzing trace with hash 227049609, now seen corresponding path program 1 times [2021-11-25 20:26:51,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:51,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565409119] [2021-11-25 20:26:51,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:51,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:51,752 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:26:51,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12920442] [2021-11-25 20:26:51,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:51,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:51,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:51,766 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:26:51,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 20:26:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:52,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:26:52,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:52,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:52,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:26:52,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:26:52,480 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:52,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565409119] [2021-11-25 20:26:52,480 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:26:52,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12920442] [2021-11-25 20:26:52,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12920442] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:26:52,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1419385210] [2021-11-25 20:26:52,501 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-25 20:26:52,502 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:26:52,506 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:26:52,512 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:26:52,512 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:26:52,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,615 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:26:52,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 20:26:52,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2021-11-25 20:26:52,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:26:52,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:52,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:26:52,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:52,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,782 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 20:26:52,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2021-11-25 20:26:52,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2021-11-25 20:26:52,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-25 20:26:52,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-25 20:26:52,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:52,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:52,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:52,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:52,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 78 [2021-11-25 20:26:52,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:52,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 34 [2021-11-25 20:26:53,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:26:53,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 96 [2021-11-25 20:26:53,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 46 [2021-11-25 20:26:53,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 92 [2021-11-25 20:26:53,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 58 [2021-11-25 20:26:53,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:26:53,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 105 [2021-11-25 20:26:53,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 103 [2021-11-25 20:26:53,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 53 [2021-11-25 20:26:53,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 61 [2021-11-25 20:26:53,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:26:53,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:53,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:26:53,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 20:26:53,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-25 20:26:53,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-25 20:26:53,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:26:53,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-25 20:26:54,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 74 [2021-11-25 20:26:54,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 30 [2021-11-25 20:26:54,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 27 [2021-11-25 20:26:54,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:26:54,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 20:26:54,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:26:54,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 26 treesize of output 16 [2021-11-25 20:26:54,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 26 treesize of output 16 [2021-11-25 20:26:54,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 20:26:54,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:26:54,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:26:54,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 74 [2021-11-25 20:26:54,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:54,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2021-11-25 20:26:54,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 16 [2021-11-25 20:26:54,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:54,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:54,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:54,798 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 56 for LOIs [2021-11-25 20:26:54,897 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 129 for LOIs [2021-11-25 20:26:55,249 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:26:59,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1419385210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:59,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:26:59,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-25 20:26:59,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918504746] [2021-11-25 20:26:59,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:59,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-25 20:26:59,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:59,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-25 20:26:59,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-25 20:26:59,582 INFO L87 Difference]: Start difference. First operand 368 states and 441 transitions. Second operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:27:05,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:27:07,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:27:08,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:08,063 INFO L93 Difference]: Finished difference Result 725 states and 872 transitions. [2021-11-25 20:27:08,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 20:27:08,064 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2021-11-25 20:27:08,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:08,067 INFO L225 Difference]: With dead ends: 725 [2021-11-25 20:27:08,067 INFO L226 Difference]: Without dead ends: 365 [2021-11-25 20:27:08,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-25 20:27:08,070 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 9 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 438 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:08,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1372 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 649 Invalid, 0 Unknown, 438 Unchecked, 8.4s Time] [2021-11-25 20:27:08,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-25 20:27:08,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-11-25 20:27:08,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 323 states have (on average 1.2105263157894737) internal successors, (391), 337 states have internal predecessors, (391), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-25 20:27:08,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 436 transitions. [2021-11-25 20:27:08,092 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 436 transitions. Word has length 34 [2021-11-25 20:27:08,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:08,092 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 436 transitions. [2021-11-25 20:27:08,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:27:08,093 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 436 transitions. [2021-11-25 20:27:08,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 20:27:08,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:08,094 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:08,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:08,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-25 20:27:08,319 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 20:27:08,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:08,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1472683514, now seen corresponding path program 1 times [2021-11-25 20:27:08,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:08,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923347763] [2021-11-25 20:27:08,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:08,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:08,368 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:27:08,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1871102018] [2021-11-25 20:27:08,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:08,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:27:08,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:27:08,370 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:27:08,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 20:27:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:08,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:27:08,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:08,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:27:08,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:08,852 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:08,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923347763] [2021-11-25 20:27:08,853 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:27:08,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871102018] [2021-11-25 20:27:08,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871102018] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:08,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:08,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:27:08,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828103718] [2021-11-25 20:27:08,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:08,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:27:08,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:08,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:27:08,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:27:08,861 INFO L87 Difference]: Start difference. First operand 365 states and 436 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 20:27:10,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:27:11,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:11,973 INFO L93 Difference]: Finished difference Result 664 states and 802 transitions. [2021-11-25 20:27:11,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:27:11,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2021-11-25 20:27:11,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:11,979 INFO L225 Difference]: With dead ends: 664 [2021-11-25 20:27:11,979 INFO L226 Difference]: Without dead ends: 662 [2021-11-25 20:27:11,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:11,980 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 151 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:11,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 678 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-25 20:27:11,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-11-25 20:27:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 650. [2021-11-25 20:27:12,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 593 states have (on average 1.2107925801011805) internal successors, (718), 607 states have internal predecessors, (718), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-25 20:27:12,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 795 transitions. [2021-11-25 20:27:12,047 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 795 transitions. Word has length 37 [2021-11-25 20:27:12,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:12,047 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 795 transitions. [2021-11-25 20:27:12,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 20:27:12,048 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 795 transitions. [2021-11-25 20:27:12,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-25 20:27:12,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:12,049 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:12,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:12,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:27:12,271 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 20:27:12,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:12,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1507787838, now seen corresponding path program 1 times [2021-11-25 20:27:12,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:12,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346854959] [2021-11-25 20:27:12,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:12,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:12,321 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:27:12,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877523776] [2021-11-25 20:27:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:12,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:27:12,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:27:12,348 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:27:12,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 20:27:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:12,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:27:12,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:12,918 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:27:12,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:27:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:27:13,100 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:13,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346854959] [2021-11-25 20:27:13,101 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:27:13,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877523776] [2021-11-25 20:27:13,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877523776] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:27:13,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1875202399] [2021-11-25 20:27:13,104 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-25 20:27:13,105 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:27:13,105 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:27:13,106 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:27:13,106 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:27:13,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:27:13,171 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-25 20:27:13,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-25 20:27:13,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:27:13,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-25 20:27:13,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:27:13,212 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:27:13,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2021-11-25 20:27:13,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,266 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:27:13,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 20:27:13,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:27:13,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:27:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:27:13,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,401 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 20:27:13,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2021-11-25 20:27:13,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:27:13,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 81 [2021-11-25 20:27:13,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-25 20:27:13,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:27:13,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-25 20:27:13,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 114 [2021-11-25 20:27:13,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:13,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 34 [2021-11-25 20:27:13,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:27:13,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:27:14,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:27:14,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:27:14,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 132 [2021-11-25 20:27:14,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 46 [2021-11-25 20:27:14,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 128 [2021-11-25 20:27:14,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 58 [2021-11-25 20:27:14,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 141 [2021-11-25 20:27:14,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 139 [2021-11-25 20:27:14,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 53 [2021-11-25 20:27:14,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 61 [2021-11-25 20:27:14,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:27:14,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:27:14,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 20:27:14,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-25 20:27:14,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-25 20:27:14,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:27:14,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-25 20:27:14,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 110 [2021-11-25 20:27:14,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2021-11-25 20:27:14,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2021-11-25 20:27:14,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 16 [2021-11-25 20:27:14,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:27:14,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:27:14,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 20:27:14,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:14,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 26 treesize of output 16 [2021-11-25 20:27:15,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:27:15,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:27:15,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 110 [2021-11-25 20:27:15,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2021-11-25 20:27:15,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2021-11-25 20:27:15,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 16 [2021-11-25 20:27:15,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 26 treesize of output 16 [2021-11-25 20:27:15,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:15,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 20:27:15,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:27:15,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:27:15,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:27:16,572 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 80 for LOIs [2021-11-25 20:27:16,664 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 138 for LOIs [2021-11-25 20:27:17,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 20:27:17,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 20:27:17,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:17,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:17,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 122 [2021-11-25 20:27:17,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 20:27:17,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:17,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:17,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 122 [2021-11-25 20:27:17,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 20:27:18,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:18,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:18,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 127 [2021-11-25 20:27:18,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-11-25 20:27:18,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-11-25 20:27:18,611 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 130 for LOIs [2021-11-25 20:27:18,748 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:27:24,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1875202399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:24,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:27:24,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-25 20:27:24,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196880816] [2021-11-25 20:27:24,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:24,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-25 20:27:24,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:24,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-25 20:27:24,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-25 20:27:24,677 INFO L87 Difference]: Start difference. First operand 650 states and 795 transitions. Second operand has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 20:27:28,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:27:30,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:27:32,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:27:35,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:35,516 INFO L93 Difference]: Finished difference Result 1272 states and 1563 transitions. [2021-11-25 20:27:35,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 20:27:35,517 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2021-11-25 20:27:35,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:35,521 INFO L225 Difference]: With dead ends: 1272 [2021-11-25 20:27:35,521 INFO L226 Difference]: Without dead ends: 652 [2021-11-25 20:27:35,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 98 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-25 20:27:35,524 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 9 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 645 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:35,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1533 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 700 Invalid, 1 Unknown, 645 Unchecked, 10.8s Time] [2021-11-25 20:27:35,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-11-25 20:27:35,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2021-11-25 20:27:35,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 595 states have (on average 1.2100840336134453) internal successors, (720), 609 states have internal predecessors, (720), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-25 20:27:35,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 797 transitions. [2021-11-25 20:27:35,559 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 797 transitions. Word has length 46 [2021-11-25 20:27:35,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:35,559 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 797 transitions. [2021-11-25 20:27:35,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 20:27:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 797 transitions. [2021-11-25 20:27:35,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 20:27:35,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:35,561 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:35,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:35,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:27:35,774 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 20:27:35,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:35,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2074882063, now seen corresponding path program 1 times [2021-11-25 20:27:35,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:35,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864091559] [2021-11-25 20:27:35,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:35,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:35,806 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:27:35,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730577430] [2021-11-25 20:27:35,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:35,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:27:35,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:27:35,812 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:27:35,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a245d1b2-6211-4d15-85d2-8285616b4ecb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 20:27:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:36,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:27:36,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:27:36,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:27:36,591 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 20:27:36,591 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:36,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864091559] [2021-11-25 20:27:36,591 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:27:36,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730577430] [2021-11-25 20:27:36,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730577430] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:27:36,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [933482975] [2021-11-25 20:27:36,595 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-25 20:27:36,595 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:27:36,596 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:27:36,596 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:27:36,596 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:27:36,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:27:36,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:36,653 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:27:36,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 20:27:36,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:36,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:36,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2021-11-25 20:27:36,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:27:36,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:36,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:27:36,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:27:36,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:36,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:36,777 INFO L354 Elim1Store]: treesize reduction 34, result has 47.7 percent of original size [2021-11-25 20:27:36,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 65 [2021-11-25 20:27:36,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-25 20:27:36,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:36,827 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:27:36,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2021-11-25 20:27:36,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:36,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:36,898 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:27:36,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 46 [2021-11-25 20:27:36,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:27:36,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:27:36,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:36,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,007 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 20:27:37,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2021-11-25 20:27:37,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-25 20:27:37,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:27:37,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:27:37,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:27:37,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:27:37,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 49 [2021-11-25 20:27:37,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 64 [2021-11-25 20:27:37,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:27:37,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:27:37,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 73 [2021-11-25 20:27:37,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 20:27:37,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-25 20:27:37,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-25 20:27:37,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-25 20:27:37,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:27:37,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:27:37,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:27:37,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:37,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 37 [2021-11-25 20:27:38,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:27:38,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 20:27:38,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 37 [2021-11-25 20:27:38,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:27:38,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:27:38,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:27:38,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 20:27:38,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 20:27:38,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 20:27:38,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 106 [2021-11-25 20:27:38,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 106 [2021-11-25 20:27:38,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:38,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 108 [2021-11-25 20:27:38,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 20:27:38,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 20:27:38,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 20:27:38,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:27:38,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 40 treesize of output 16 [2021-11-25 20:27:38,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:27:38,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 40 treesize of output 16 [2021-11-25 20:27:40,131 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 20:27:40,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1330 treesize of output 951 [2021-11-25 20:27:40,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:41,680 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 20:27:41,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1387 treesize of output 1153 [2021-11-25 20:27:41,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:43,233 INFO L354 Elim1Store]: treesize reduction 1060, result has 37.8 percent of original size [2021-11-25 20:27:43,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 726 treesize of output 805 [2021-11-25 20:27:43,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:43,516 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 20:27:43,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-25 20:27:43,549 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:27:43,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:43,688 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:27:43,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-25 20:27:43,739 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:27:43,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:43,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2021-11-25 20:27:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:43,931 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-25 20:27:43,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 44 [2021-11-25 20:27:44,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:44,055 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 20:27:44,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 26 [2021-11-25 20:27:44,091 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:27:44,134 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:27:44,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:44,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:27:44,183 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:27:44,217 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:27:44,269 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:27:44,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:44,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2021-11-25 20:27:44,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:47,492 INFO L354 Elim1Store]: treesize reduction 1396, result has 19.4 percent of original size [2021-11-25 20:27:47,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 4880 treesize of output 3839 [2021-11-25 20:27:47,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:27:49,234 INFO L354 Elim1Store]: treesize reduction 1100, result has 26.4 percent of original size [2021-11-25 20:27:49,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 4924 treesize of output 3565 [2021-11-25 20:28:07,655 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:07,680 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:07,869 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:08,052 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:08,116 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:08,204 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:08,284 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:08,451 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:08,498 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:08,569 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:08,601 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:08,620 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:08,662 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:08,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:28:08,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:08,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:08,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:08,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 147 [2021-11-25 20:28:08,913 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:09,033 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:09,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:09,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:09,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:09,086 INFO L354 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2021-11-25 20:28:09,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 913 treesize of output 863 [2021-11-25 20:28:09,237 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:28:09,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:09,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:09,390 INFO L354 Elim1Store]: treesize reduction 116, result has 43.4 percent of original size [2021-11-25 20:28:09,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 446 treesize of output 486 [2021-11-25 20:28:10,511 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:11,060 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:11,077 WARN L220 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:28:11,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:11,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:11,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:11,171 INFO L354 Elim1Store]: treesize reduction 216, result has 0.5 percent of original size [2021-11-25 20:28:11,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 3730 treesize of output 3652 [2021-11-25 20:28:12,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:12,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:12,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:12,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:12,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:12,851 INFO L354 Elim1Store]: treesize reduction 140, result has 28.2 percent of original size [2021-11-25 20:28:12,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 396 treesize of output 394 [2021-11-25 20:28:12,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:12,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:12,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:12,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:13,175 INFO L354 Elim1Store]: treesize reduction 94, result has 51.8 percent of original size [2021-11-25 20:28:13,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 474 treesize of output 514 [2021-11-25 20:28:13,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:13,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:13,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:13,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:28:13,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:13,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:13,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:13,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:13,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:13,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:13,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:13,522 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:28:13,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 1344 treesize of output 1296 [2021-11-25 20:28:14,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:14,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:14,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:28:14,525 INFO L354 Elim1Store]: treesize reduction 184, result has 45.4 percent of original size [2021-11-25 20:28:14,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 3739 treesize of output 3807 [2021-11-25 20:29:06,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:06,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:06,634 INFO L354 Elim1Store]: treesize reduction 113, result has 64.8 percent of original size [2021-11-25 20:29:06,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 455 treesize of output 608 [2021-11-25 20:29:53,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:53,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:53,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:53,718 INFO L354 Elim1Store]: treesize reduction 27, result has 58.5 percent of original size [2021-11-25 20:29:53,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 187 [2021-11-25 20:29:54,252 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:29:54,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:54,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:54,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:54,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:54,597 INFO L354 Elim1Store]: treesize reduction 14, result has 54.8 percent of original size [2021-11-25 20:29:54,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 172 treesize of output 166 [2021-11-25 20:29:54,719 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:29:54,777 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:29:54,979 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:29:54,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:54,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:54,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:54,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:54,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:54,991 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:29:54,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2021-11-25 20:29:55,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:55,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:55,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:55,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:55,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:55,126 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:29:55,213 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 20:29:55,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 628 treesize of output 1 [2021-11-25 20:29:56,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:56,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:56,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:56,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 147 [2021-11-25 20:29:56,383 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:29:56,490 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:29:56,929 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:29:57,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:57,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:57,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:57,158 INFO L354 Elim1Store]: treesize reduction 278, result has 0.4 percent of original size [2021-11-25 20:29:57,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 922 treesize of output 866 [2021-11-25 20:29:57,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:57,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:57,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:57,477 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:29:57,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:57,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:57,483 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:29:57,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:57,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:57,557 INFO L354 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2021-11-25 20:29:57,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 1600 treesize of output 1542 [2021-11-25 20:29:58,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:58,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:58,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:58,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:58,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:29:58,988 INFO L354 Elim1Store]: treesize reduction 194, result has 0.5 percent of original size [2021-11-25 20:29:58,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 734 treesize of output 670 [2021-11-25 20:30:13,192 WARN L220 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:31:01,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:01,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:01,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:01,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 619 treesize of output 599 [2021-11-25 20:31:01,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:01,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:01,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:01,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 147 [2021-11-25 20:31:01,930 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:31:02,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:02,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:02,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:02,590 INFO L354 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2021-11-25 20:31:02,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 913 treesize of output 863 [2021-11-25 20:31:02,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:02,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:02,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:02,877 INFO L354 Elim1Store]: treesize reduction 176, result has 0.6 percent of original size [2021-11-25 20:31:02,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 446 treesize of output 398 [2021-11-25 20:31:03,050 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:31:03,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:03,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:03,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:03,434 INFO L354 Elim1Store]: treesize reduction 216, result has 0.5 percent of original size [2021-11-25 20:31:03,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 3730 treesize of output 3652 [2021-11-25 20:31:51,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:51,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:51,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:51,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:51,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:51,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:53,539 INFO L354 Elim1Store]: treesize reduction 616, result has 41.7 percent of original size [2021-11-25 20:31:53,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 6 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 83 case distinctions, treesize of input 226889 treesize of output 218677 [2021-11-25 20:38:53,036 WARN L227 SmtUtils]: Spent 7.90s on a formula simplification that was a NOOP. DAG size: 3464 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)