./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_sync.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_sync.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 459cf049271151c452003a0973bcdcc76c918d5759d842702be03de8528f67ef --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:42:00,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:42:00,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:42:00,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:42:00,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:42:00,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:42:00,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:42:00,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:42:00,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:42:00,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:42:00,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:42:00,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:42:00,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:42:00,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:42:00,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:42:00,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:42:00,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:42:00,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:42:00,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:42:00,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:42:00,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:42:00,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:42:00,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:42:00,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:42:00,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:42:00,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:42:00,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:42:00,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:42:00,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:42:00,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:42:00,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:42:00,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:42:00,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:42:00,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:42:00,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:42:00,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:42:00,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:42:00,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:42:00,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:42:00,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:42:00,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:42:00,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:42:00,799 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:42:00,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:42:00,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:42:00,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:42:00,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:42:00,803 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:42:00,803 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:42:00,803 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:42:00,803 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:42:00,804 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:42:00,805 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:42:00,805 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:42:00,806 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:42:00,806 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:42:00,806 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:42:00,806 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:42:00,807 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:42:00,807 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:42:00,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:42:00,808 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:42:00,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:42:00,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:42:00,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:42:00,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:42:00,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:42:00,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:42:00,812 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:42:00,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:42:00,812 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:42:00,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:42:00,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:42:00,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:42:00,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:42:00,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:42:00,814 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:42:00,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:42:00,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:42:00,815 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:42:00,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:42:00,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:42:00,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:42:00,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 459cf049271151c452003a0973bcdcc76c918d5759d842702be03de8528f67ef [2022-10-17 17:42:01,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:42:01,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:42:01,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:42:01,194 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:42:01,195 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:42:01,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/seq-pthread/cs_sync.i [2022-10-17 17:42:01,270 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/data/cf5f07250/7d9a5c965fd9414f898a01091e8b1277/FLAG5460732c6 [2022-10-17 17:42:01,871 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:42:01,872 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/sv-benchmarks/c/seq-pthread/cs_sync.i [2022-10-17 17:42:01,896 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/data/cf5f07250/7d9a5c965fd9414f898a01091e8b1277/FLAG5460732c6 [2022-10-17 17:42:02,118 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/data/cf5f07250/7d9a5c965fd9414f898a01091e8b1277 [2022-10-17 17:42:02,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:42:02,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:42:02,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:42:02,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:42:02,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:42:02,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:42:02" (1/1) ... [2022-10-17 17:42:02,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f9b181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:02, skipping insertion in model container [2022-10-17 17:42:02,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:42:02" (1/1) ... [2022-10-17 17:42:02,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:42:02,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:42:02,800 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_5dfa01b5-81c6-4b53-b490-503bfbb6e346/sv-benchmarks/c/seq-pthread/cs_sync.i[34698,34711] [2022-10-17 17:42:02,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:42:02,929 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:42:03,003 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_5dfa01b5-81c6-4b53-b490-503bfbb6e346/sv-benchmarks/c/seq-pthread/cs_sync.i[34698,34711] [2022-10-17 17:42:03,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:42:03,121 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:42:03,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03 WrapperNode [2022-10-17 17:42:03,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:42:03,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:42:03,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:42:03,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:42:03,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (1/1) ... [2022-10-17 17:42:03,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (1/1) ... [2022-10-17 17:42:03,211 INFO L138 Inliner]: procedures = 245, calls = 244, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 544 [2022-10-17 17:42:03,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:42:03,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:42:03,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:42:03,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:42:03,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (1/1) ... [2022-10-17 17:42:03,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (1/1) ... [2022-10-17 17:42:03,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (1/1) ... [2022-10-17 17:42:03,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (1/1) ... [2022-10-17 17:42:03,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (1/1) ... [2022-10-17 17:42:03,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (1/1) ... [2022-10-17 17:42:03,309 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (1/1) ... [2022-10-17 17:42:03,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (1/1) ... [2022-10-17 17:42:03,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:42:03,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:42:03,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:42:03,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:42:03,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (1/1) ... [2022-10-17 17:42:03,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:42:03,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:42:03,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:42:03,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:42:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 17:42:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 17:42:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:42:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_signal [2022-10-17 17:42:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_signal [2022-10-17 17:42:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2022-10-17 17:42:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2022-10-17 17:42:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:42:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:42:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:42:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2022-10-17 17:42:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2022-10-17 17:42:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:42:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_init [2022-10-17 17:42:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_init [2022-10-17 17:42:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:42:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:42:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:42:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-10-17 17:42:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-10-17 17:42:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_wait [2022-10-17 17:42:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_wait [2022-10-17 17:42:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-10-17 17:42:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-10-17 17:42:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-17 17:42:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-17 17:42:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-10-17 17:42:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-10-17 17:42:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:42:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:42:03,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:42:03,773 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:42:03,776 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:42:04,455 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !(0 != ~__CS_ret~0 % 256); [2022-10-17 17:42:04,455 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-10-17 17:42:04,455 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != ~__CS_ret~0 % 256); [2022-10-17 17:42:04,456 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-10-17 17:42:04,456 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L991: SUMMARY for call __CS_cs(); srcloc: null [2022-10-17 17:42:04,456 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L991-1: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-10-17 17:42:04,456 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L991-1: assume !(0 != ~__CS_ret~0 % 256); [2022-10-17 17:42:07,008 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:42:07,283 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:42:07,283 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-17 17:42:07,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:42:07 BoogieIcfgContainer [2022-10-17 17:42:07,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:42:07,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:42:07,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:42:07,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:42:07,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:42:02" (1/3) ... [2022-10-17 17:42:07,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737166a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:42:07, skipping insertion in model container [2022-10-17 17:42:07,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:42:03" (2/3) ... [2022-10-17 17:42:07,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737166a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:42:07, skipping insertion in model container [2022-10-17 17:42:07,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:42:07" (3/3) ... [2022-10-17 17:42:07,331 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_sync.i [2022-10-17 17:42:07,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:42:07,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:42:07,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:42:07,465 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c6b815c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:42:07,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:42:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 93 states have (on average 1.4193548387096775) internal successors, (132), 94 states have internal predecessors, (132), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-10-17 17:42:07,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-17 17:42:07,490 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:42:07,491 INFO L195 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1] [2022-10-17 17:42:07,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:42:07,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:42:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1396517772, now seen corresponding path program 1 times [2022-10-17 17:42:07,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:42:07,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829299137] [2022-10-17 17:42:07,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:42:07,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:42:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:42:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-10-17 17:42:08,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:42:08,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829299137] [2022-10-17 17:42:08,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829299137] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:42:08,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:42:08,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:42:08,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746124650] [2022-10-17 17:42:08,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:42:08,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:42:08,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:42:08,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:42:08,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:42:08,904 INFO L87 Difference]: Start difference. First operand has 160 states, 93 states have (on average 1.4193548387096775) internal successors, (132), 94 states have internal predecessors, (132), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-17 17:42:11,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:42:11,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:42:11,249 INFO L93 Difference]: Finished difference Result 319 states and 486 transitions. [2022-10-17 17:42:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:42:11,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 50 [2022-10-17 17:42:11,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:42:11,274 INFO L225 Difference]: With dead ends: 319 [2022-10-17 17:42:11,274 INFO L226 Difference]: Without dead ends: 160 [2022-10-17 17:42:11,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:42:11,301 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 2 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-17 17:42:11,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 428 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-10-17 17:42:11,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-10-17 17:42:11,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2022-10-17 17:42:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 93 states have internal predecessors, (128), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-10-17 17:42:11,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 238 transitions. [2022-10-17 17:42:11,415 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 238 transitions. Word has length 50 [2022-10-17 17:42:11,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:42:11,416 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 238 transitions. [2022-10-17 17:42:11,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-17 17:42:11,417 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 238 transitions. [2022-10-17 17:42:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-17 17:42:11,433 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:42:11,434 INFO L195 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1] [2022-10-17 17:42:11,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:42:11,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:42:11,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:42:11,440 INFO L85 PathProgramCache]: Analyzing trace with hash -43471116, now seen corresponding path program 1 times [2022-10-17 17:42:11,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:42:11,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939158240] [2022-10-17 17:42:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:42:11,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:42:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:42:12,242 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-10-17 17:42:12,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:42:12,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939158240] [2022-10-17 17:42:12,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939158240] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:42:12,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:42:12,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:42:12,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274531585] [2022-10-17 17:42:12,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:42:12,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:42:12,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:42:12,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:42:12,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:42:12,254 INFO L87 Difference]: Start difference. First operand 159 states and 238 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-17 17:42:14,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:42:14,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:42:14,480 INFO L93 Difference]: Finished difference Result 317 states and 476 transitions. [2022-10-17 17:42:14,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:42:14,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 52 [2022-10-17 17:42:14,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:42:14,485 INFO L225 Difference]: With dead ends: 317 [2022-10-17 17:42:14,485 INFO L226 Difference]: Without dead ends: 160 [2022-10-17 17:42:14,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:42:14,489 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-17 17:42:14,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 427 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-10-17 17:42:14,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-10-17 17:42:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-10-17 17:42:14,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 94 states have (on average 1.372340425531915) internal successors, (129), 94 states have internal predecessors, (129), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-10-17 17:42:14,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 239 transitions. [2022-10-17 17:42:14,519 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 239 transitions. Word has length 52 [2022-10-17 17:42:14,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:42:14,520 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 239 transitions. [2022-10-17 17:42:14,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-17 17:42:14,521 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 239 transitions. [2022-10-17 17:42:14,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-17 17:42:14,529 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:42:14,529 INFO L195 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1] [2022-10-17 17:42:14,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:42:14,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:42:14,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:42:14,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1780668808, now seen corresponding path program 1 times [2022-10-17 17:42:14,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:42:14,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719319817] [2022-10-17 17:42:14,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:42:14,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:42:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:42:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-10-17 17:42:15,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:42:15,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719319817] [2022-10-17 17:42:15,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719319817] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:42:15,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407421598] [2022-10-17 17:42:15,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:42:15,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:42:15,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:42:15,244 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:42:15,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfa01b5-81c6-4b53-b490-503bfbb6e346/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:42:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:42:16,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 17:42:16,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:42:16,188 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-10-17 17:42:16,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 17:42:16,269 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-10-17 17:42:16,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407421598] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 17:42:16,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [653765376] [2022-10-17 17:42:16,295 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-10-17 17:42:16,296 INFO L166 IcfgInterpreter]: Building call graph [2022-10-17 17:42:16,300 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-10-17 17:42:16,310 INFO L176 IcfgInterpreter]: Starting interpretation [2022-10-17 17:42:16,310 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-10-17 17:42:16,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 16 [2022-10-17 17:42:16,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 16 [2022-10-17 17:42:16,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:16,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:16,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:16,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:16,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:16,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:16,830 INFO L244 Elim1Store]: Index analysis took 134 ms [2022-10-17 17:42:18,636 INFO L356 Elim1Store]: treesize reduction 1202, result has 16.9 percent of original size [2022-10-17 17:42:18,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 60 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 72 treesize of output 285 [2022-10-17 17:42:18,895 INFO L390 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 9 treesize of output 11 [2022-10-17 17:42:18,939 INFO L390 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 9 treesize of output 11 [2022-10-17 17:42:18,989 INFO L390 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 9 treesize of output 11 [2022-10-17 17:42:19,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:19,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:19,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:19,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:19,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:19,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:19,484 INFO L244 Elim1Store]: Index analysis took 342 ms [2022-10-17 17:42:22,037 INFO L356 Elim1Store]: treesize reduction 1712, result has 14.4 percent of original size [2022-10-17 17:42:22,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 67 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 88 case distinctions, treesize of input 167 treesize of output 413 [2022-10-17 17:42:22,235 INFO L390 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 9 treesize of output 11 [2022-10-17 17:42:23,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 44 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 82 [2022-10-17 17:42:23,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 44 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 80 [2022-10-17 17:42:23,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 22 select indices, 22 select index equivalence classes, 112 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 350 treesize of output 285 [2022-10-17 17:42:23,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 57 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 91 [2022-10-17 17:42:23,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:23,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 30 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2022-10-17 17:42:24,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 23 select indices, 23 select index equivalence classes, 99 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 277 [2022-10-17 17:42:24,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 44 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 93 [2022-10-17 17:42:24,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:24,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 44 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 106 [2022-10-17 17:42:26,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,760 INFO L244 Elim1Store]: Index analysis took 186 ms [2022-10-17 17:42:26,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:26,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:26,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:26,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:26,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:26,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:26,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:26,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:26,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:28,657 INFO L356 Elim1Store]: treesize reduction 1587, result has 10.5 percent of original size [2022-10-17 17:42:28,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 23 select indices, 23 select index equivalence classes, 79 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 44 case distinctions, treesize of input 1982 treesize of output 1867 [2022-10-17 17:42:29,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:29,289 INFO L356 Elim1Store]: treesize reduction 108, result has 15.0 percent of original size [2022-10-17 17:42:29,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1950 treesize of output 1910 [2022-10-17 17:42:29,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:29,614 INFO L356 Elim1Store]: treesize reduction 208, result has 17.1 percent of original size [2022-10-17 17:42:29,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 1955 treesize of output 1944 [2022-10-17 17:42:29,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:29,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:30,003 INFO L356 Elim1Store]: treesize reduction 108, result has 15.0 percent of original size [2022-10-17 17:42:30,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1942 treesize of output 1902 [2022-10-17 17:42:30,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:30,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:30,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:30,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:30,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:30,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:42:30,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 17:42:30,334 INFO L356 Elim1Store]: treesize reduction 156, result has 21.6 percent of original size [2022-10-17 17:42:30,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 1934 treesize of output 1923