./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW --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 64bit --witnessprinter.graph.data.programhash ecdd92537224765109e6dc87add95fccbb3577c40656fa807e1aa68ef45fa853 --- 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-4e7fbc6 [2022-11-23 14:21:20,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:21:20,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:21:20,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:21:20,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:21:20,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:21:20,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:21:20,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:21:20,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:21:20,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:21:20,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:21:20,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:21:20,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:21:20,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:21:20,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:21:20,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:21:20,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:21:20,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:21:20,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:21:20,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:21:20,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:21:20,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:21:20,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:21:20,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:21:20,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:21:20,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:21:20,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:21:20,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:21:20,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:21:20,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:21:20,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:21:20,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:21:20,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:21:20,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:21:20,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:21:20,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:21:20,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:21:20,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:21:20,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:21:20,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:21:20,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:21:20,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:21:20,872 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:21:20,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:21:20,873 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:21:20,873 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:21:20,874 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:21:20,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:21:20,885 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:21:20,885 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:21:20,886 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:21:20,886 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:21:20,886 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:21:20,886 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:21:20,887 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:21:20,887 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:21:20,887 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:21:20,888 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:21:20,888 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:21:20,888 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:21:20,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:21:20,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:21:20,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:21:20,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:21:20,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:21:20,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:21:20,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:21:20,892 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:21:20,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:21:20,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:21:20,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:21:20,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:21:20,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:21:20,895 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:21:20,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:21:20,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:21:20,896 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:21:20,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:21:20,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:21:20,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:21:20,898 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_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecdd92537224765109e6dc87add95fccbb3577c40656fa807e1aa68ef45fa853 [2022-11-23 14:21:21,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:21:21,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:21:21,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:21:21,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:21:21,299 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:21:21,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c [2022-11-23 14:21:24,668 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:21:24,883 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:21:24,884 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c [2022-11-23 14:21:24,891 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/data/0781cf501/db723940c69f4cd386d94d79fb4e29c0/FLAG3c2aae5d8 [2022-11-23 14:21:24,908 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/data/0781cf501/db723940c69f4cd386d94d79fb4e29c0 [2022-11-23 14:21:24,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:21:24,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:21:24,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:21:24,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:21:24,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:21:24,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:24" (1/1) ... [2022-11-23 14:21:24,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23233df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:24, skipping insertion in model container [2022-11-23 14:21:24,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:24" (1/1) ... [2022-11-23 14:21:24,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:21:24,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:21:25,096 WARN L237 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_3358b79a-4e69-4fa8-8610-4c5d38d3374e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c[1107,1120] [2022-11-23 14:21:25,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:21:25,151 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:21:25,162 WARN L237 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_3358b79a-4e69-4fa8-8610-4c5d38d3374e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c[1107,1120] [2022-11-23 14:21:25,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:21:25,202 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:21:25,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25 WrapperNode [2022-11-23 14:21:25,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:21:25,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:21:25,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:21:25,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:21:25,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (1/1) ... [2022-11-23 14:21:25,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (1/1) ... [2022-11-23 14:21:25,249 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2022-11-23 14:21:25,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:21:25,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:21:25,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:21:25,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:21:25,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (1/1) ... [2022-11-23 14:21:25,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (1/1) ... [2022-11-23 14:21:25,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (1/1) ... [2022-11-23 14:21:25,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (1/1) ... [2022-11-23 14:21:25,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (1/1) ... [2022-11-23 14:21:25,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (1/1) ... [2022-11-23 14:21:25,275 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (1/1) ... [2022-11-23 14:21:25,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (1/1) ... [2022-11-23 14:21:25,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:21:25,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:21:25,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:21:25,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:21:25,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (1/1) ... [2022-11-23 14:21:25,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:21:25,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:21:25,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:21:25,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:21:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:21:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:21:25,460 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:21:25,462 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:21:25,782 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:21:25,801 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:21:25,801 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:21:25,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:25 BoogieIcfgContainer [2022-11-23 14:21:25,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:21:25,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:21:25,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:21:25,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:21:25,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:21:24" (1/3) ... [2022-11-23 14:21:25,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6302eb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:25, skipping insertion in model container [2022-11-23 14:21:25,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25" (2/3) ... [2022-11-23 14:21:25,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6302eb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:25, skipping insertion in model container [2022-11-23 14:21:25,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:25" (3/3) ... [2022-11-23 14:21:25,844 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.paper_v3.c [2022-11-23 14:21:25,879 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:21:25,880 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:21:25,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:21:25,954 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;@6817893b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:21:25,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:21:25,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-23 14:21:25,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:21:25,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:21:25,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:21:25,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:21:25,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:21:25,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-23 14:21:26,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:21:26,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295655112] [2022-11-23 14:21:26,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:21:26,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:21:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:21:26,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:21:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:21:26,348 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:21:26,354 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:21:26,355 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:21:26,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:21:26,364 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:21:26,369 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:21:26,389 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 14:21:26,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:21:26 BoogieIcfgContainer [2022-11-23 14:21:26,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:21:26,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:21:26,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:21:26,403 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:21:26,405 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:25" (3/4) ... [2022-11-23 14:21:26,415 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:21:26,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:21:26,418 INFO L158 Benchmark]: Toolchain (without parser) took 1504.81ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 67.6MB in the end (delta: 53.6MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-23 14:21:26,419 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 167.8MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:21:26,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.56ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 109.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:21:26,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.77ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 107.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:21:26,422 INFO L158 Benchmark]: Boogie Preprocessor took 29.09ms. Allocated memory is still 167.8MB. Free memory was 107.5MB in the beginning and 106.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:21:26,428 INFO L158 Benchmark]: RCFGBuilder took 540.00ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 85.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 14:21:26,429 INFO L158 Benchmark]: TraceAbstraction took 577.23ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 67.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 14:21:26,435 INFO L158 Benchmark]: Witness Printer took 13.53ms. Allocated memory is still 167.8MB. Free memory was 67.6MB in the beginning and 67.6MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:21:26,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 167.8MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.56ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 109.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.77ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 107.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.09ms. Allocated memory is still 167.8MB. Free memory was 107.5MB in the beginning and 106.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 540.00ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 85.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 577.23ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 67.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 13.53ms. Allocated memory is still 167.8MB. Free memory was 67.6MB in the beginning and 67.6MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 54, overapproximation of bitwiseAnd at line 59. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_3 var_4 = 0; [L32] const SORT_1 var_13 = 1; [L33] const SORT_3 var_19 = 255; [L34] const SORT_3 var_23 = 1; [L36] SORT_1 input_2; [L38] SORT_3 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L39] SORT_3 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L41] SORT_3 init_6_arg_1 = var_4; [L42] state_5 = init_6_arg_1 [L43] SORT_3 init_8_arg_1 = var_4; [L44] state_7 = init_8_arg_1 VAL [init_6_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_3=255, msb_SORT_1=1, msb_SORT_3=128, state_5=0, state_7=0, var_13=1, var_19=255, var_23=1, var_4=0] [L47] input_2 = __VERIFIER_nondet_uchar() [L50] SORT_3 var_9_arg_0 = state_5; [L51] SORT_3 var_9_arg_1 = state_7; [L52] SORT_1 var_9 = var_9_arg_0 > var_9_arg_1; [L53] SORT_1 var_10_arg_0 = var_9; [L54] SORT_1 var_10 = ~var_10_arg_0; [L55] SORT_1 var_14_arg_0 = var_10; [L56] SORT_1 var_14 = ~var_14_arg_0; [L57] SORT_1 var_15_arg_0 = var_13; [L58] SORT_1 var_15_arg_1 = var_14; [L59] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L60] var_15 = var_15 & mask_SORT_1 [L61] SORT_1 bad_16_arg_0 = var_15; [L62] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 14:21:26,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW --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 64bit --witnessprinter.graph.data.programhash ecdd92537224765109e6dc87add95fccbb3577c40656fa807e1aa68ef45fa853 --- 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-4e7fbc6 [2022-11-23 14:21:29,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:21:29,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:21:29,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:21:29,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:21:29,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:21:29,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:21:29,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:21:29,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:21:29,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:21:29,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:21:29,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:21:29,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:21:29,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:21:29,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:21:29,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:21:29,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:21:29,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:21:29,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:21:29,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:21:29,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:21:29,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:21:29,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:21:29,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:21:29,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:21:29,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:21:29,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:21:29,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:21:29,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:21:29,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:21:29,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:21:29,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:21:29,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:21:29,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:21:29,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:21:29,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:21:29,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:21:29,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:21:29,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:21:29,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:21:29,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:21:29,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 14:21:29,445 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:21:29,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:21:29,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:21:29,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:21:29,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:21:29,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:21:29,449 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:21:29,449 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:21:29,449 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:21:29,450 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:21:29,451 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:21:29,451 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:21:29,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:21:29,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:21:29,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:21:29,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:21:29,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:21:29,453 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:21:29,454 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:21:29,454 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:21:29,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:21:29,454 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:21:29,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:21:29,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:21:29,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:21:29,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:21:29,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:21:29,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:21:29,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:21:29,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:21:29,457 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:21:29,457 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:21:29,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:21:29,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:21:29,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:21:29,458 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecdd92537224765109e6dc87add95fccbb3577c40656fa807e1aa68ef45fa853 [2022-11-23 14:21:29,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:21:29,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:21:29,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:21:29,963 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:21:29,964 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:21:29,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c [2022-11-23 14:21:33,629 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:21:33,874 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:21:33,875 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c [2022-11-23 14:21:33,883 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/data/b9b4ebdbf/c86754ee8c96418dbab3b1f42b5f9945/FLAG5098c5bae [2022-11-23 14:21:33,904 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/data/b9b4ebdbf/c86754ee8c96418dbab3b1f42b5f9945 [2022-11-23 14:21:33,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:21:33,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:21:33,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:21:33,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:21:33,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:21:33,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:33" (1/1) ... [2022-11-23 14:21:33,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a0295a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:33, skipping insertion in model container [2022-11-23 14:21:33,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:33" (1/1) ... [2022-11-23 14:21:33,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:21:33,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:21:34,163 WARN L237 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_3358b79a-4e69-4fa8-8610-4c5d38d3374e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c[1107,1120] [2022-11-23 14:21:34,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:21:34,282 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:21:34,297 WARN L237 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_3358b79a-4e69-4fa8-8610-4c5d38d3374e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c[1107,1120] [2022-11-23 14:21:34,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:21:34,398 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:21:34,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34 WrapperNode [2022-11-23 14:21:34,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:21:34,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:21:34,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:21:34,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:21:34,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (1/1) ... [2022-11-23 14:21:34,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (1/1) ... [2022-11-23 14:21:34,470 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2022-11-23 14:21:34,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:21:34,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:21:34,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:21:34,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:21:34,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (1/1) ... [2022-11-23 14:21:34,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (1/1) ... [2022-11-23 14:21:34,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (1/1) ... [2022-11-23 14:21:34,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (1/1) ... [2022-11-23 14:21:34,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (1/1) ... [2022-11-23 14:21:34,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (1/1) ... [2022-11-23 14:21:34,522 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (1/1) ... [2022-11-23 14:21:34,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (1/1) ... [2022-11-23 14:21:34,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:21:34,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:21:34,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:21:34,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:21:34,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (1/1) ... [2022-11-23 14:21:34,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:21:34,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:21:34,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:21:34,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:21:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:21:34,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:21:34,778 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:21:34,781 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:21:35,041 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:21:35,061 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:21:35,062 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:21:35,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:35 BoogieIcfgContainer [2022-11-23 14:21:35,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:21:35,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:21:35,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:21:35,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:21:35,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:21:33" (1/3) ... [2022-11-23 14:21:35,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384e5e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:35, skipping insertion in model container [2022-11-23 14:21:35,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:34" (2/3) ... [2022-11-23 14:21:35,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384e5e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:35, skipping insertion in model container [2022-11-23 14:21:35,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:35" (3/3) ... [2022-11-23 14:21:35,075 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.paper_v3.c [2022-11-23 14:21:35,098 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:21:35,099 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:21:35,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:21:35,180 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;@6a1043a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:21:35,180 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:21:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-11-23 14:21:35,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:21:35,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:21:35,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:21:35,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:21:35,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:21:35,202 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 14:21:35,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:21:35,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141401062] [2022-11-23 14:21:35,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:21:35,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:21:35,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:21:35,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:21:35,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:21:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:21:35,411 WARN L261 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 14:21:35,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:21:35,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:21:35,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:21:35,727 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:21:35,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141401062] [2022-11-23 14:21:35,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141401062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:21:35,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:21:35,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:21:35,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743627352] [2022-11-23 14:21:35,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:21:35,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:21:35,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:21:35,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:21:35,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:21:35,773 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-23 14:21:35,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:21:35,863 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 14:21:35,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:21:35,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-11-23 14:21:35,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:21:35,878 INFO L225 Difference]: With dead ends: 20 [2022-11-23 14:21:35,878 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 14:21:35,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:21:35,889 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:21:35,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:21:35,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 14:21:35,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 14:21:35,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-11-23 14:21:35,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 14:21:35,929 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 14:21:35,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:21:35,930 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 14:21:35,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-23 14:21:35,932 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 14:21:35,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:21:35,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:21:35,934 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 14:21:35,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:21:36,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:21:36,158 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:21:36,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:21:36,160 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 14:21:36,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:21:36,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463202839] [2022-11-23 14:21:36,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:21:36,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:21:36,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:21:36,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:21:36,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:21:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:21:36,282 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-23 14:21:36,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:21:36,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:21:36,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:21:38,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:21:38,163 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:21:38,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463202839] [2022-11-23 14:21:38,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463202839] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:21:38,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [392761678] [2022-11-23 14:21:38,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:21:38,164 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:21:38,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:21:38,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:21:38,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 14:21:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:21:38,368 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:21:38,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:21:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:21:38,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:21:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:21:40,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [392761678] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:21:40,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537978021] [2022-11-23 14:21:40,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:21:40,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:21:40,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:21:40,831 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:21:40,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:21:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:21:40,935 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:21:40,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:21:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:21:41,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:21:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:21:42,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537978021] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:21:42,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 14:21:42,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 12 [2022-11-23 14:21:42,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391780640] [2022-11-23 14:21:42,399 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 14:21:42,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 14:21:42,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:21:42,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 14:21:42,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:21:42,403 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2022-11-23 14:21:42,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:21:42,633 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-23 14:21:42,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:21:42,634 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 8 [2022-11-23 14:21:42,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:21:42,635 INFO L225 Difference]: With dead ends: 19 [2022-11-23 14:21:42,635 INFO L226 Difference]: Without dead ends: 17 [2022-11-23 14:21:42,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-11-23 14:21:42,637 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:21:42,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 26 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:21:42,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-23 14:21:42,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-23 14:21:42,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-11-23 14:21:42,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-23 14:21:42,644 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-23 14:21:42,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:21:42,645 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-23 14:21:42,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2022-11-23 14:21:42,645 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-23 14:21:42,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 14:21:42,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:21:42,646 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-23 14:21:42,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:21:42,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:21:43,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:21:43,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:21:43,260 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:21:43,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:21:43,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-11-23 14:21:43,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:21:43,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536553383] [2022-11-23 14:21:43,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:21:43,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:21:43,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:21:43,265 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:21:43,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 14:21:43,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:21:43,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:21:43,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 110 conjunts are in the unsatisfiable core [2022-11-23 14:21:43,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:21:44,143 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:21:44,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:21:46,454 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:21:46,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:21:46,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536553383] [2022-11-23 14:21:46,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536553383] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:21:46,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1643888851] [2022-11-23 14:21:46,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:21:46,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:21:46,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:21:46,458 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:21:46,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-23 14:21:46,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:21:46,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:21:46,746 WARN L261 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 113 conjunts are in the unsatisfiable core [2022-11-23 14:21:46,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:21:47,460 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:21:47,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:21:51,572 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (or (forall ((|v_ULTIMATE.start_main_~var_15_arg_0~0#1_12| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_12|) (_ bv1 32)))))))) (let ((.cse4 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_3~0#1|)) (.cse5 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_23~0#1|)) (.cse27 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_7~0#1|))) (let ((.cse13 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_5~0#1|)) (.cse24 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse27))))))))))) (.cse11 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_19~0#1|))) (let ((.cse6 (forall ((|v_ULTIMATE.start_main_~var_32_arg_2~0#1_14| (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_2~0#1_14|)))))))) .cse11)))) (.cse12 (not (= .cse11 .cse24))) (.cse9 (forall ((|v_ULTIMATE.start_main_~var_32_arg_2~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_26_arg_2~0#1_13| (_ BitVec 8))) (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_13|)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_2~0#1_13|)))))))))))) (.cse8 (forall ((|v_ULTIMATE.start_main_~var_34_arg_1~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_26_arg_2~0#1_13| (_ BitVec 8))) (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_13|)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_34_arg_1~0#1_13|)))))))))) (.cse1 (= .cse13 .cse27))) (and (or (not .cse1) (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse13)))))))))) (let ((.cse7 (forall ((|v_ULTIMATE.start_main_~var_32_arg_2~0#1_13| (_ BitVec 8))) (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse3 .cse5)))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_2~0#1_13|))))))))))))) (and (or (and (forall ((|v_ULTIMATE.start_main_~var_32_arg_2~0#1_14| (_ BitVec 8))) (let ((.cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_2~0#1_14|)))))))))) (or (= .cse2 .cse3) (forall ((|v_ULTIMATE.start_main_~var_26_arg_2~0#1_13| (_ BitVec 8))) (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_13|)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse2 .cse5)))))))))))))))) (or .cse6 .cse7) (or .cse8 (forall ((|v_ULTIMATE.start_main_~var_32_arg_2~0#1_14| (_ BitVec 8))) (not (bvsgt .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_2~0#1_14|)))))))))))) (or .cse9 (forall ((|v_ULTIMATE.start_main_~var_32_arg_2~0#1_14| (_ BitVec 8))) (let ((.cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_2~0#1_14|)))))))))) (or (= .cse10 .cse3) (not (= .cse10 .cse11))))))) (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_14| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_14|) (_ bv1 32)))) .cse0)) (_ bv0 8))))) (or (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_14| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_14|) (_ bv1 32)))) .cse0)) (_ bv0 8))) .cse7 .cse12))))) (or (let ((.cse16 (bvsgt .cse13 .cse27))) (let ((.cse17 (forall ((|v_ULTIMATE.start_main_~var_26_arg_2~0#1_14| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_32_arg_2~0#1_13| (_ BitVec 8))) (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_14|)))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_2~0#1_13|)))))))))))) (.cse15 (forall ((|v_ULTIMATE.start_main_~var_34_arg_1~0#1_14| (_ BitVec 8))) (not (= .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_34_arg_1~0#1_14|)))))))))) (.cse18 (forall ((|v_ULTIMATE.start_main_~var_34_arg_1~0#1_14| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_26_arg_2~0#1_14| (_ BitVec 8))) (let ((.cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_34_arg_1~0#1_14|)))))))) (or (not (= .cse11 .cse26)) (= .cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_14|))))))))))) (.cse20 (forall ((|v_ULTIMATE.start_main_~var_34_arg_1~0#1_14| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_26_arg_2~0#1_14| (_ BitVec 8))) (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_14|)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_34_arg_1~0#1_14|)))))))))) (.cse14 (not .cse16))) (and (or (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_14| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_14|) (_ bv0 32)))))) (_ bv0 8)))) (and (or (and (or .cse14 .cse15) (or .cse16 .cse6)) .cse17) (or .cse9 (and (or .cse14 .cse18) (or .cse16 (forall ((|v_ULTIMATE.start_main_~var_32_arg_2~0#1_14| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_26_arg_2~0#1_14| (_ BitVec 8))) (let ((.cse19 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_2~0#1_14|)))))))))) (or (= .cse19 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_14|))))))) (not (= .cse19 .cse11)))))))) (or (and (or .cse14 .cse20) (or .cse16 (forall ((|v_ULTIMATE.start_main_~var_32_arg_2~0#1_14| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_26_arg_2~0#1_14| (_ BitVec 8))) (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_14|)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_2~0#1_14|))))))))))))) .cse8) (or (forall ((|v_ULTIMATE.start_main_~var_34_arg_1~0#1_14| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_26_arg_2~0#1_14| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_26_arg_2~0#1_13| (_ BitVec 8))) (let ((.cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_34_arg_1~0#1_14|)))))))) (or (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_13|)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse21)))))))))))) (= .cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_14|)))))))))) .cse14) (or .cse16 (forall ((|v_ULTIMATE.start_main_~var_32_arg_2~0#1_14| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_26_arg_2~0#1_14| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_26_arg_2~0#1_13| (_ BitVec 8))) (let ((.cse22 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_2~0#1_14|)))))))))) (or (= .cse22 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_14|))))))) (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_13|)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse22 .cse5)))))))))))))))))) (or (and (or .cse16 (let ((.cse23 (forall ((|v_ULTIMATE.start_main_~var_26_arg_2~0#1_14| (_ BitVec 8))) (= .cse24 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_14|)))))))))) (and (or (and .cse17 (or .cse9 .cse23)) .cse12) (or .cse23 (forall ((|v_ULTIMATE.start_main_~var_26_arg_2~0#1_13| (_ BitVec 8))) (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_13|)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse24)))))))))))))) (or .cse8 (forall ((|v_ULTIMATE.start_main_~var_26_arg_2~0#1_14| (_ BitVec 8))) (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_14|)))))) .cse24))))))) (or (and (or .cse17 .cse15) (or .cse9 .cse18) (forall ((|v_ULTIMATE.start_main_~var_34_arg_1~0#1_14| (_ BitVec 8))) (let ((.cse25 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_34_arg_1~0#1_14|)))))))) (or (forall ((|v_ULTIMATE.start_main_~var_26_arg_2~0#1_14| (_ BitVec 8))) (= .cse25 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_14|)))))))) (forall ((|v_ULTIMATE.start_main_~var_26_arg_2~0#1_13| (_ BitVec 8))) (not (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_13|)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse25)))))))))))))))) (or .cse20 .cse8)) .cse14)) (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_14| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_14|) (_ bv0 32)))))) (_ bv0 8))))))) .cse1))))))) is different from false [2022-11-23 14:25:12,802 WARN L233 SmtUtils]: Spent 3.05m on a formula simplification. DAG size of input: 644 DAG size of output: 145 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:25:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-11-23 14:25:13,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1643888851] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:25:13,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766047681] [2022-11-23 14:25:13,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:25:13,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:25:13,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:25:13,199 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:25:13,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 14:25:13,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:25:13,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:25:13,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 110 conjunts are in the unsatisfiable core [2022-11-23 14:25:13,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:25:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:25:13,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:25:16,157 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:25:16,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766047681] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:25:16,158 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 14:25:16,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7, 7, 7, 6] total 17 [2022-11-23 14:25:16,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273152549] [2022-11-23 14:25:16,159 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 14:25:16,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:25:16,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:25:16,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:25:16,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=4, NotChecked=28, Total=272 [2022-11-23 14:25:16,161 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 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) [2022-11-23 14:25:17,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:17,086 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-23 14:25:17,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:25:17,088 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 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 14 [2022-11-23 14:25:17,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:17,088 INFO L225 Difference]: With dead ends: 19 [2022-11-23 14:25:17,088 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:25:17,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 56 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 196.8s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=4, NotChecked=38, Total=462 [2022-11-23 14:25:17,091 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:17,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 17 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 95 Invalid, 0 Unknown, 10 Unchecked, 0.3s Time] [2022-11-23 14:25:17,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:25:17,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:25:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-23 14:25:17,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:25:17,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-23 14:25:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:17,094 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:25:17,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 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) [2022-11-23 14:25:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:25:17,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:25:17,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:25:17,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:25:17,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:25:17,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:25:17,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 14:25:17,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:25:17,997 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:25:17,998 INFO L895 garLoopResultBuilder]: At program point L120(lines 22 121) the Hoare annotation is: false [2022-11-23 14:25:17,998 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 14:25:17,998 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:25:17,998 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 14:25:17,998 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-23 14:25:17,999 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-23 14:25:17,999 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-23 14:25:17,999 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-23 14:25:17,999 INFO L895 garLoopResultBuilder]: At program point L45-2(lines 45 119) the Hoare annotation is: (or (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= |ULTIMATE.start_main_~state_7~0#1| (_ bv0 8)) (= (_ bv1 8) |ULTIMATE.start_main_~var_23~0#1|) (= |ULTIMATE.start_main_~state_5~0#1| |ULTIMATE.start_main_~state_7~0#1|) (= (bvadd (_ bv1 8) |ULTIMATE.start_main_~var_19~0#1|) (_ bv0 8)) (= (_ bv0 8) (bvadd (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|))) (let ((.cse2 (forall ((|v_ULTIMATE.start_main_~var_15_arg_0~0#1_12| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_12|) (_ bv1 32)))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|)))))) (.cse0 ((_ zero_extend 24) |ULTIMATE.start_main_~state_5~0#1|)) (.cse1 ((_ zero_extend 24) |ULTIMATE.start_main_~state_7~0#1|))) (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (or (not (bvsgt .cse0 .cse1)) .cse2) (or .cse2 (= .cse0 .cse1) (forall ((|v_ULTIMATE.start_main_~var_26_arg_2~0#1_9| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_32_arg_2~0#1_9| (_ BitVec 8))) (not (let ((.cse3 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|))) (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_26_arg_2~0#1_9|))) .cse3))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_2~0#1_9|))))) .cse3))))))))))) [2022-11-23 14:25:18,000 INFO L899 garLoopResultBuilder]: For program point L45-3(lines 45 119) no Hoare annotation was computed. [2022-11-23 14:25:18,004 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-23 14:25:18,007 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:25:18,015 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] [2022-11-23 14:25:18,016 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] [2022-11-23 14:25:18,017 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_26_arg_2~0#1_9,QUANTIFIED] [2022-11-23 14:25:18,018 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_2~0#1_9,QUANTIFIED] [2022-11-23 14:25:18,027 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] [2022-11-23 14:25:18,030 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] [2022-11-23 14:25:18,031 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_26_arg_2~0#1_9,QUANTIFIED] [2022-11-23 14:25:18,031 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_2~0#1_9,QUANTIFIED] [2022-11-23 14:25:18,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:25:18 BoogieIcfgContainer [2022-11-23 14:25:18,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:25:18,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:25:18,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:25:18,045 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:25:18,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:35" (3/4) ... [2022-11-23 14:25:18,049 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:25:18,066 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-23 14:25:18,066 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 14:25:18,067 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:25:18,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:25:18,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:25:18,149 INFO L158 Benchmark]: Toolchain (without parser) took 224239.95ms. Allocated memory was 71.3MB in the beginning and 234.9MB in the end (delta: 163.6MB). Free memory was 41.3MB in the beginning and 143.1MB in the end (delta: -101.9MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. [2022-11-23 14:25:18,150 INFO L158 Benchmark]: CDTParser took 1.60ms. Allocated memory is still 71.3MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:25:18,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.01ms. Allocated memory is still 71.3MB. Free memory was 41.1MB in the beginning and 50.5MB in the end (delta: -9.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-11-23 14:25:18,151 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.29ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 48.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:25:18,151 INFO L158 Benchmark]: Boogie Preprocessor took 59.88ms. Allocated memory is still 71.3MB. Free memory was 48.5MB in the beginning and 47.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:25:18,152 INFO L158 Benchmark]: RCFGBuilder took 531.60ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 34.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 14:25:18,152 INFO L158 Benchmark]: TraceAbstraction took 222968.27ms. Allocated memory was 71.3MB in the beginning and 234.9MB in the end (delta: 163.6MB). Free memory was 33.3MB in the beginning and 146.3MB in the end (delta: -113.0MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2022-11-23 14:25:18,153 INFO L158 Benchmark]: Witness Printer took 112.92ms. Allocated memory is still 234.9MB. Free memory was 146.3MB in the beginning and 143.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:25:18,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.60ms. Allocated memory is still 71.3MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.01ms. Allocated memory is still 71.3MB. Free memory was 41.1MB in the beginning and 50.5MB in the end (delta: -9.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.29ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 48.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.88ms. Allocated memory is still 71.3MB. Free memory was 48.5MB in the beginning and 47.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.60ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 34.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 222968.27ms. Allocated memory was 71.3MB in the beginning and 234.9MB in the end (delta: 163.6MB). Free memory was 33.3MB in the beginning and 146.3MB in the end (delta: -113.0MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * Witness Printer took 112.92ms. Allocated memory is still 234.9MB. Free memory was 146.3MB in the beginning and 143.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_26_arg_2~0#1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_2~0#1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_26_arg_2~0#1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_2~0#1_9,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 222.9s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 10 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 11 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 86 SyntacticMatches, 11 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 198.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 91 HoareAnnotationTreeSize, 2 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 195 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 218.4s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 42 QuantifiedInterpolants, 8185 SizeOfPredicates, 531 NumberOfNonLiveVariables, 997 ConjunctsInSsa, 505 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 6/102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 45]: Loop Invariant [2022-11-23 14:25:18,176 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] [2022-11-23 14:25:18,177 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] [2022-11-23 14:25:18,181 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_26_arg_2~0#1_9,QUANTIFIED] [2022-11-23 14:25:18,182 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_2~0#1_9,QUANTIFIED] [2022-11-23 14:25:18,183 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] [2022-11-23 14:25:18,183 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_15_arg_0~0#1_12,QUANTIFIED] [2022-11-23 14:25:18,187 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_26_arg_2~0#1_9,QUANTIFIED] [2022-11-23 14:25:18,187 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_2~0#1_9,QUANTIFIED] Derived loop invariant: (((((1bv8 == mask_SORT_1 && state_7 == 0bv8) && 1bv8 == var_23) && state_5 == state_7) && ~bvadd128(1bv8, var_19) == 0bv8) && 0bv8 == ~bvadd128(1bv8, mask_SORT_3)) || ((cond == 1bv32 && (!~bvsgt32(~zero_extendFrom8To32(state_5), ~zero_extendFrom8To32(state_7)) || (forall v_ULTIMATE.start_main_~var_15_arg_0~0#1_12 : bv8 :: 0bv8 == ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_15_arg_0~0#1_12), 1bv32)[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) && (((forall v_ULTIMATE.start_main_~var_15_arg_0~0#1_12 : bv8 :: 0bv8 == ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_15_arg_0~0#1_12), 1bv32)[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) || ~zero_extendFrom8To32(state_5) == ~zero_extendFrom8To32(state_7)) || (forall v_ULTIMATE.start_main_~var_26_arg_2~0#1_9 : bv8, v_ULTIMATE.start_main_~var_32_arg_2~0#1_9 : bv8 :: !~bvsgt32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_26_arg_2~0#1_9)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0]), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_32_arg_2~0#1_9)[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0]))))) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-23 14:25:18,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3358b79a-4e69-4fa8-8610-4c5d38d3374e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE