./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9 --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 8e703c0c99512c9025402351b79a41accf5bd6b8dfef03fa3544178837b891c9 --- 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-6b4ec56 [2022-11-20 20:48:38,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:48:38,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:48:38,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:48:38,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:48:38,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:48:38,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:48:38,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:48:38,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:48:38,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:48:38,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:48:38,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:48:38,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:48:38,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:48:38,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:48:38,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:48:38,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:48:38,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:48:38,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:48:38,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:48:38,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:48:38,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:48:38,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:48:38,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:48:38,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:48:38,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:48:38,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:48:38,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:48:38,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:48:38,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:48:38,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:48:38,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:48:38,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:48:38,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:48:38,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:48:38,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:48:38,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:48:38,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:48:38,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:48:38,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:48:38,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:48:38,262 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:48:38,309 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:48:38,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:48:38,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:48:38,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:48:38,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:48:38,311 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:48:38,311 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:48:38,312 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:48:38,312 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:48:38,312 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:48:38,313 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:48:38,313 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:48:38,313 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:48:38,314 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:48:38,314 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:48:38,314 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:48:38,314 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:48:38,314 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:48:38,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:48:38,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:48:38,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:48:38,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:48:38,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:48:38,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:48:38,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:48:38,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:48:38,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:48:38,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:48:38,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:48:38,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:48:38,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:48:38,318 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:48:38,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:48:38,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:48:38,319 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:48:38,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:48:38,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:48:38,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:48:38,320 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_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e703c0c99512c9025402351b79a41accf5bd6b8dfef03fa3544178837b891c9 [2022-11-20 20:48:38,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:48:38,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:48:38,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:48:38,652 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:48:38,653 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:48:38,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c [2022-11-20 20:48:41,703 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:48:42,059 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:48:42,074 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c [2022-11-20 20:48:42,083 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/data/5ad98c9b2/e86b8317e6d647a68c9a75c989605670/FLAG37a3ebff3 [2022-11-20 20:48:42,099 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/data/5ad98c9b2/e86b8317e6d647a68c9a75c989605670 [2022-11-20 20:48:42,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:48:42,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:48:42,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:48:42,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:48:42,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:48:42,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:48:42" (1/1) ... [2022-11-20 20:48:42,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b91cef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:42, skipping insertion in model container [2022-11-20 20:48:42,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:48:42" (1/1) ... [2022-11-20 20:48:42,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:48:42,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:48:42,314 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_845465a8-b66d-4906-9bc3-154372ac41ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c[1014,1027] [2022-11-20 20:48:42,356 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1126) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleLoops(CHandler.java:3466) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:223) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 20:48:42,363 INFO L158 Benchmark]: Toolchain (without parser) took 253.92ms. Allocated memory is still 157.3MB. Free memory was 127.4MB in the beginning and 116.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 20:48:42,363 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:48:42,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.73ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 116.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 20:48:42,365 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 117.4MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.73ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 116.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9 --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 8e703c0c99512c9025402351b79a41accf5bd6b8dfef03fa3544178837b891c9 --- 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-6b4ec56 [2022-11-20 20:48:44,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:48:44,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:48:44,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:48:44,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:48:44,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:48:44,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:48:44,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:48:44,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:48:44,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:48:44,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:48:44,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:48:44,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:48:44,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:48:44,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:48:44,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:48:44,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:48:44,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:48:44,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:48:44,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:48:44,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:48:44,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:48:44,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:48:44,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:48:44,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:48:44,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:48:44,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:48:44,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:48:44,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:48:44,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:48:44,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:48:44,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:48:44,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:48:44,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:48:44,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:48:44,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:48:44,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:48:44,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:48:44,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:48:44,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:48:44,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:48:44,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 20:48:44,841 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:48:44,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:48:44,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:48:44,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:48:44,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:48:44,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:48:44,844 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:48:44,844 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:48:44,844 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:48:44,844 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:48:44,845 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:48:44,846 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:48:44,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:48:44,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:48:44,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:48:44,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:48:44,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:48:44,847 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:48:44,848 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:48:44,848 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:48:44,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:48:44,848 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:48:44,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:48:44,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:48:44,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:48:44,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:48:44,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:48:44,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:48:44,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:48:44,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:48:44,850 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:48:44,850 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:48:44,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:48:44,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:48:44,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:48:44,851 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_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e703c0c99512c9025402351b79a41accf5bd6b8dfef03fa3544178837b891c9 [2022-11-20 20:48:45,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:48:45,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:48:45,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:48:45,230 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:48:45,230 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:48:45,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c [2022-11-20 20:48:48,269 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:48:48,568 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:48:48,569 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c [2022-11-20 20:48:48,579 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/data/633d1bb6d/0e476ed8bbd647dab4b2083e34c6da70/FLAGd9df65522 [2022-11-20 20:48:48,598 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/data/633d1bb6d/0e476ed8bbd647dab4b2083e34c6da70 [2022-11-20 20:48:48,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:48:48,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:48:48,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:48:48,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:48:48,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:48:48,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:48:48" (1/1) ... [2022-11-20 20:48:48,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ada30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:48, skipping insertion in model container [2022-11-20 20:48:48,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:48:48" (1/1) ... [2022-11-20 20:48:48,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:48:48,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:48:48,858 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_845465a8-b66d-4906-9bc3-154372ac41ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c[1014,1027] [2022-11-20 20:48:49,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:48:49,079 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:48:49,090 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_845465a8-b66d-4906-9bc3-154372ac41ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c[1014,1027] [2022-11-20 20:48:49,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:48:49,242 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:48:49,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49 WrapperNode [2022-11-20 20:48:49,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:48:49,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:48:49,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:48:49,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:48:49,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (1/1) ... [2022-11-20 20:48:49,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (1/1) ... [2022-11-20 20:48:49,338 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 431 [2022-11-20 20:48:49,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:48:49,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:48:49,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:48:49,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:48:49,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (1/1) ... [2022-11-20 20:48:49,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (1/1) ... [2022-11-20 20:48:49,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (1/1) ... [2022-11-20 20:48:49,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (1/1) ... [2022-11-20 20:48:49,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (1/1) ... [2022-11-20 20:48:49,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (1/1) ... [2022-11-20 20:48:49,429 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (1/1) ... [2022-11-20 20:48:49,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (1/1) ... [2022-11-20 20:48:49,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:48:49,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:48:49,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:48:49,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:48:49,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (1/1) ... [2022-11-20 20:48:49,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:48:49,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:48:49,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:48:49,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:48:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:48:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:48:49,703 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:48:49,705 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:48:50,405 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:48:50,412 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:48:50,413 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 20:48:50,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:48:50 BoogieIcfgContainer [2022-11-20 20:48:50,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:48:50,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:48:50,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:48:50,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:48:50,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:48:48" (1/3) ... [2022-11-20 20:48:50,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187ae4e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:48:50, skipping insertion in model container [2022-11-20 20:48:50,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:48:49" (2/3) ... [2022-11-20 20:48:50,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187ae4e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:48:50, skipping insertion in model container [2022-11-20 20:48:50,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:48:50" (3/3) ... [2022-11-20 20:48:50,425 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.6.prop1-func-interl.c [2022-11-20 20:48:50,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:48:50,444 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:48:50,499 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:48:50,506 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;@691cb4bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:48:50,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:48:50,510 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) [2022-11-20 20:48:50,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 20:48:50,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:50,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 20:48:50,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:48:50,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:50,524 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 20:48:50,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:50,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757544923] [2022-11-20 20:48:50,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:50,538 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 [2022-11-20 20:48:50,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:50,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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) [2022-11-20 20:48:50,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 20:48:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:50,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-20 20:48:50,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:48:51,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:51,195 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:51,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757544923] [2022-11-20 20:48:51,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757544923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:51,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:51,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:48:51,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165701559] [2022-11-20 20:48:51,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:51,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:48:51,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:51,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:48:51,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:48:51,258 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) [2022-11-20 20:48:51,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:51,370 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 20:48:51,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:48:51,373 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 [2022-11-20 20:48:51,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:51,381 INFO L225 Difference]: With dead ends: 20 [2022-11-20 20:48:51,381 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 20:48:51,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:48:51,388 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:51,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:48:51,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 20:48:51,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 20:48:51,418 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) [2022-11-20 20:48:51,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 20:48:51,421 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 20:48:51,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:51,422 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 20:48:51,422 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) [2022-11-20 20:48:51,422 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 20:48:51,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 20:48:51,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:51,423 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 20:48:51,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 20:48:51,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 20:48:51,640 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:48:51,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:51,640 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 20:48:51,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:51,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913147465] [2022-11-20 20:48:51,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:51,642 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 [2022-11-20 20:48:51,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:51,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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) [2022-11-20 20:48:51,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 20:48:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:51,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-20 20:48:51,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:50,958 WARN L233 SmtUtils]: Spent 58.04s on a formula simplification. DAG size of input: 148 DAG size of output: 145 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:49:51,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:49:51,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:49:54,475 WARN L837 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~var_137_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_138_arg_1~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_123_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_89_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_109_arg_1~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_86_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_91_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_99_arg_1~0#1_3| (_ BitVec 8))) (= ((_ extract 7 0) (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_137_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_99_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_23~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_37~0#1|)))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_89_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_86_arg_0~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_17~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_38~0#1|)))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_91_arg_1~0#1_3|)))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_109_arg_1~0#1_4|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_3|))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_138_arg_1~0#1_4|))))))) .cse0))))))))) (_ bv1 32)))) .cse0))) (_ bv0 8))) (let ((.cse7 (bvnot (bvlshr |c_ULTIMATE.start_main_~mask_SORT_4~0#1| |c_ULTIMATE.start_main_~var_32~0#1|))) (.cse8 (bvnot |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)) (.cse9 ((_ zero_extend 16) |c_ULTIMATE.start_main_~var_28~0#1|)) (.cse14 (= |c_ULTIMATE.start_main_~input_37~0#1| (_ bv0 8)))) (let ((.cse1 (= |c_ULTIMATE.start_main_~input_38~0#1| (_ bv0 8))) (.cse3 (not .cse14)) (.cse2 (or (and (forall ((|v_ULTIMATE.start_main_~var_40_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse12 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_40_arg_1~0#1_3|))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand (bvashr (bvand .cse12 |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_32~0#1|) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_27~0#1|)) (not (= (_ bv0 32) (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse12)))))) (forall ((|v_ULTIMATE.start_main_~var_40_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse13 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_40_arg_1~0#1_3|))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse7 (bvashr (bvor .cse13 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|))) |c_ULTIMATE.start_main_~var_27~0#1|)) (= (_ bv0 32) (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse13)))))) .cse14))) (and (or (not .cse1) (and .cse2 (or .cse3 (let ((.cse5 (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |c_ULTIMATE.start_main_~var_29~0#1|))))) .cse9))) .cse9))) (_ bv16 32)))) (and (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse4 (bvor .cse5 ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse4) (_ bv0 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvashr (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| .cse4) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~var_27~0#1|))))) (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse6 (bvor .cse5 ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (= (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse6) (_ bv0 32)) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse7 (bvashr (bvor .cse6 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|))) |c_ULTIMATE.start_main_~var_27~0#1|)))))))))) (or .cse1 (and (or .cse3 (and (forall ((|v_ULTIMATE.start_main_~var_39_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse10 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_39_arg_1~0#1_3|))))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (= (bvand .cse10 |c_ULTIMATE.start_main_~msb_SORT_4~0#1|) (_ bv0 32)) (not (= (bvand (bvor .cse7 (bvashr (bvor .cse10 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_27~0#1|))))) (forall ((|v_ULTIMATE.start_main_~var_39_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse11 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_39_arg_1~0#1_3|))))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand .cse11 |c_ULTIMATE.start_main_~msb_SORT_4~0#1|) (_ bv0 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvashr (bvand .cse11 |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~var_27~0#1|))))))) .cse2)))))) is different from false [2022-11-20 20:51:07,747 WARN L233 SmtUtils]: Spent 1.19m on a formula simplification that was a NOOP. DAG size: 227 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:51:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-20 20:51:07,964 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:07,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913147465] [2022-11-20 20:51:07,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913147465] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:51:07,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [738478462] [2022-11-20 20:51:07,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:07,966 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:51:07,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:51:08,003 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:51:08,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-20 20:51:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:08,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-20 20:51:08,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:51,383 WARN L233 SmtUtils]: Spent 39.06s on a formula simplification that was a NOOP. DAG size: 151 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:51:51,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:51:51,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:52:07,905 WARN L233 SmtUtils]: Spent 13.72s on a formula simplification. DAG size of input: 215 DAG size of output: 201 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:53:28,164 WARN L233 SmtUtils]: Spent 1.21m on a formula simplification that was a NOOP. DAG size: 211 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:53:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:53:28,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [738478462] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:53:28,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829430766] [2022-11-20 20:53:28,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:53:28,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:53:28,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:53:28,243 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:53:28,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 20:53:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:53:28,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 78 conjunts are in the unsatisfiable core [2022-11-20 20:53:28,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:53:30,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:53:30,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:53:55,861 WARN L233 SmtUtils]: Spent 18.28s on a formula simplification. DAG size of input: 215 DAG size of output: 209 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:54:01,906 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 209 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:55:28,325 WARN L233 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 221 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:55:28,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:55:28,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829430766] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:55:28,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-20 20:55:28,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 21 [2022-11-20 20:55:28,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122216744] [2022-11-20 20:55:28,409 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-20 20:55:28,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 20:55:28,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:55:28,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 20:55:28,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=290, Unknown=13, NotChecked=36, Total=420 [2022-11-20 20:55:28,414 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 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) [2022-11-20 20:55:30,608 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse9 ((_ zero_extend 16) |c_ULTIMATE.start_main_~var_28~0#1|)) (.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse15 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)))) (and (exists ((|v_ULTIMATE.start_main_#t~nondet11#1_6| (_ BitVec 8))) (= |c_ULTIMATE.start_main_~input_38~0#1| ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet11#1_6|) .cse0)))) (= (_ bv949 32) |c_ULTIMATE.start_main_~var_27~0#1|) (or (forall ((|v_ULTIMATE.start_main_~var_137_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_138_arg_1~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_123_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_89_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_109_arg_1~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_86_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_91_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_99_arg_1~0#1_3| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_137_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_99_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_23~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_37~0#1|)))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_89_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_86_arg_0~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_17~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_38~0#1|)))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_91_arg_1~0#1_3|)))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_109_arg_1~0#1_4|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_3|))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_138_arg_1~0#1_4|))))))) .cse0))))))))) (_ bv1 32)))) .cse0)) (_ bv0 8))) (let ((.cse7 (bvnot (bvlshr |c_ULTIMATE.start_main_~mask_SORT_4~0#1| |c_ULTIMATE.start_main_~var_32~0#1|))) (.cse8 (bvnot |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)) (.cse14 (= |c_ULTIMATE.start_main_~input_37~0#1| (_ bv0 8)))) (let ((.cse1 (= |c_ULTIMATE.start_main_~input_38~0#1| (_ bv0 8))) (.cse3 (not .cse14)) (.cse2 (or (and (forall ((|v_ULTIMATE.start_main_~var_40_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse12 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_40_arg_1~0#1_3|))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand (bvashr (bvand .cse12 |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_32~0#1|) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_27~0#1|)) (not (= (_ bv0 32) (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse12)))))) (forall ((|v_ULTIMATE.start_main_~var_40_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse13 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_40_arg_1~0#1_3|))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse7 (bvashr (bvor .cse13 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|))) |c_ULTIMATE.start_main_~var_27~0#1|)) (= (_ bv0 32) (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse13)))))) .cse14))) (and (or (not .cse1) (and .cse2 (or .cse3 (let ((.cse5 (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |c_ULTIMATE.start_main_~var_29~0#1|))))) .cse9))) .cse9))) (_ bv16 32)))) (and (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse4 (bvor .cse5 ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse4) (_ bv0 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvashr (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| .cse4) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~var_27~0#1|))))) (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse6 (bvor .cse5 ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (= (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse6) (_ bv0 32)) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse7 (bvashr (bvor .cse6 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|))) |c_ULTIMATE.start_main_~var_27~0#1|)))))))))) (or .cse1 (and (or .cse3 (and (forall ((|v_ULTIMATE.start_main_~var_39_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse10 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_39_arg_1~0#1_3|))))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (= (bvand .cse10 |c_ULTIMATE.start_main_~msb_SORT_4~0#1|) (_ bv0 32)) (not (= (bvand (bvor .cse7 (bvashr (bvor .cse10 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_27~0#1|))))) (forall ((|v_ULTIMATE.start_main_~var_39_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse11 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_39_arg_1~0#1_3|))))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand .cse11 |c_ULTIMATE.start_main_~msb_SORT_4~0#1|) (_ bv0 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvashr (bvand .cse11 |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~var_27~0#1|))))))) .cse2)))))) (= |c_ULTIMATE.start_main_~var_29~0#1| ((_ extract 15 0) (bvxor .cse9 (_ bv0 32)))) (= |c_ULTIMATE.start_main_~var_32~0#1| (_ bv16 32)) (= |c_ULTIMATE.start_main_~var_30~0#1| (_ bv0 16)) (= |c_ULTIMATE.start_main_~var_28~0#1| (_ bv1 16)) (= (bvadd |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (_ bv1 32)) (_ bv0 32)) (= |c_ULTIMATE.start_main_~msb_SORT_4~0#1| (_ bv2147483648 32)) (exists ((|v_ULTIMATE.start_main_#t~nondet10#1_6| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet10#1_6|))) |c_ULTIMATE.start_main_~input_37~0#1|)) (exists ((|v_ULTIMATE.start_main_#t~nondet10#1_8| (_ BitVec 8))) (= |c_ULTIMATE.start_main_~input_37~0#1| ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet10#1_8|))))) (exists ((|v_ULTIMATE.start_main_#t~nondet11#1_8| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet11#1_8|))) |c_ULTIMATE.start_main_~input_38~0#1|)) (= (_ bv0 8) |c_ULTIMATE.start_main_~state_17~0#1|) .cse15 (= (_ bv1 8) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|) (= |c_ULTIMATE.start_main_~state_6~0#1| (_ bv0 16)) (= |c_ULTIMATE.start_main_~state_23~0#1| |c_ULTIMATE.start_main_~state_17~0#1|) (or (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) .cse15))) is different from false [2022-11-20 20:56:52,798 WARN L233 SmtUtils]: Spent 1.28m on a formula simplification. DAG size of input: 226 DAG size of output: 151 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:56:52,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:56:52,844 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 20:56:52,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 20:56:52,845 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 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 [2022-11-20 20:56:52,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:56:52,846 INFO L225 Difference]: With dead ends: 16 [2022-11-20 20:56:52,846 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 20:56:52,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 470.6s TimeCoverageRelationStatistics Valid=90, Invalid=323, Unknown=15, NotChecked=78, Total=506 [2022-11-20 20:56:52,848 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:56:52,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 51 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2022-11-20 20:56:52,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 20:56:52,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 20:56:52,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-20 20:56:52,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 20:56:52,855 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 20:56:52,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:56:52,856 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 20:56:52,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 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) [2022-11-20 20:56:52,856 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 20:56:52,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 20:56:52,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:56:52,857 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 20:56:52,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 20:56:53,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-20 20:56:53,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 20:56:53,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:56:53,458 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:56:53,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:56:53,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 20:56:53,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:56:53,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039260466] [2022-11-20 20:56:53,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 20:56:53,462 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 [2022-11-20 20:56:53,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:56:53,463 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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) [2022-11-20 20:56:53,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845465a8-b66d-4906-9bc3-154372ac41ec/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 20:56:53,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 20:56:53,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 20:56:53,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 149 conjunts are in the unsatisfiable core [2022-11-20 20:56:53,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:57:49,134 WARN L233 SmtUtils]: Spent 53.24s on a formula simplification. DAG size of input: 192 DAG size of output: 182 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:58:26,368 WARN L233 SmtUtils]: Spent 34.49s on a formula simplification that was a NOOP. DAG size: 210 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:02:55,588 WARN L233 SmtUtils]: Spent 4.38m on a formula simplification. DAG size of input: 527 DAG size of output: 512 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 21:02:57,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:02:57,038 INFO L328 TraceCheckSpWp]: Computing backward predicates...