./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0b6b79cb1fa4accf5125a3420115b0b09b98cba7b1efdd830c177a3c1ffb8598 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 13:42:48,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:42:48,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:42:48,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:42:48,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:42:48,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:42:48,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:42:48,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:42:48,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:42:48,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:42:48,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:42:48,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:42:48,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:42:48,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:42:48,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:42:48,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:42:48,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:42:48,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:42:48,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:42:48,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:42:48,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:42:48,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:42:48,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:42:48,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:42:48,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:42:48,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:42:48,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:42:48,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:42:48,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:42:48,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:42:48,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:42:48,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:42:48,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:42:48,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:42:48,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:42:48,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:42:48,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:42:48,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:42:48,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:42:48,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:42:48,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:42:48,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 13:42:48,113 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:42:48,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:42:48,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:42:48,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:42:48,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:42:48,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:42:48,114 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:42:48,115 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:42:48,115 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:42:48,115 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:42:48,115 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:42:48,115 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:42:48,116 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:42:48,116 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:42:48,116 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:42:48,116 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:42:48,116 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:42:48,117 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:42:48,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:42:48,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:42:48,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:42:48,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:42:48,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:42:48,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:42:48,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:42:48,119 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:42:48,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:42:48,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:42:48,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:42:48,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:42:48,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:42:48,120 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:42:48,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:42:48,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:42:48,120 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:42:48,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:42:48,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:42:48,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:42:48,121 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_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b6b79cb1fa4accf5125a3420115b0b09b98cba7b1efdd830c177a3c1ffb8598 [2022-11-23 13:42:48,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:42:48,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:42:48,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:42:48,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:42:48,408 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:42:48,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c [2022-11-23 13:42:51,446 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:42:51,707 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:42:51,707 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c [2022-11-23 13:42:51,716 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/data/6c573d15f/80c75db5a3884d24901263ce0f84b273/FLAG89f75d1c0 [2022-11-23 13:42:51,731 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/data/6c573d15f/80c75db5a3884d24901263ce0f84b273 [2022-11-23 13:42:51,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:42:51,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:42:51,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:42:51,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:42:51,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:42:51,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:51" (1/1) ... [2022-11-23 13:42:51,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740d02e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:51, skipping insertion in model container [2022-11-23 13:42:51,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:51" (1/1) ... [2022-11-23 13:42:51,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:42:51,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:42:51,939 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_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1107,1120] [2022-11-23 13:42:52,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:42:52,042 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:42:52,055 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_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1107,1120] [2022-11-23 13:42:52,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:42:52,165 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:42:52,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52 WrapperNode [2022-11-23 13:42:52,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:42:52,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:42:52,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:42:52,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:42:52,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (1/1) ... [2022-11-23 13:42:52,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (1/1) ... [2022-11-23 13:42:52,234 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 392 [2022-11-23 13:42:52,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:42:52,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:42:52,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:42:52,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:42:52,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (1/1) ... [2022-11-23 13:42:52,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (1/1) ... [2022-11-23 13:42:52,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (1/1) ... [2022-11-23 13:42:52,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (1/1) ... [2022-11-23 13:42:52,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (1/1) ... [2022-11-23 13:42:52,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (1/1) ... [2022-11-23 13:42:52,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (1/1) ... [2022-11-23 13:42:52,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (1/1) ... [2022-11-23 13:42:52,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:42:52,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:42:52,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:42:52,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:42:52,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (1/1) ... [2022-11-23 13:42:52,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:42:52,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:42:52,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:42:52,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:42:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:42:52,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:42:52,572 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:42:52,574 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:42:54,229 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:42:54,253 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:42:54,253 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 13:42:54,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:54 BoogieIcfgContainer [2022-11-23 13:42:54,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:42:54,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:42:54,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:42:54,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:42:54,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:42:51" (1/3) ... [2022-11-23 13:42:54,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3756cb8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:42:54, skipping insertion in model container [2022-11-23 13:42:54,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52" (2/3) ... [2022-11-23 13:42:54,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3756cb8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:42:54, skipping insertion in model container [2022-11-23 13:42:54,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:54" (3/3) ... [2022-11-23 13:42:54,265 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.zaher.c [2022-11-23 13:42:54,288 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:42:54,288 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:42:54,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:42:54,365 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;@5cfd712d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:42:54,365 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:42:54,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:54,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 13:42:54,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:54,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 13:42:54,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:42:54,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:54,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-23 13:42:54,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:54,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315200099] [2022-11-23 13:42:54,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:54,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 13:42:54,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 13:42:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 13:42:54,833 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 13:42:54,835 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 13:42:54,836 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 13:42:54,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:42:54,845 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 13:42:54,850 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:42:54,888 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:42:54,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:42:54 BoogieIcfgContainer [2022-11-23 13:42:54,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:42:54,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:42:54,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:42:54,898 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:42:54,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:54" (3/4) ... [2022-11-23 13:42:54,905 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 13:42:54,905 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:42:54,906 INFO L158 Benchmark]: Toolchain (without parser) took 3170.97ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 107.9MB in the beginning and 100.8MB in the end (delta: 7.1MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2022-11-23 13:42:54,906 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:42:54,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.32ms. Allocated memory is still 138.4MB. Free memory was 107.4MB in the beginning and 89.0MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 13:42:54,907 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.60ms. Allocated memory is still 138.4MB. Free memory was 89.0MB in the beginning and 84.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 13:42:54,908 INFO L158 Benchmark]: Boogie Preprocessor took 57.87ms. Allocated memory is still 138.4MB. Free memory was 84.9MB in the beginning and 82.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:42:54,909 INFO L158 Benchmark]: RCFGBuilder took 1961.80ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 82.3MB in the beginning and 133.3MB in the end (delta: -51.1MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2022-11-23 13:42:54,909 INFO L158 Benchmark]: TraceAbstraction took 638.70ms. Allocated memory is still 178.3MB. Free memory was 132.3MB in the beginning and 101.9MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-23 13:42:54,910 INFO L158 Benchmark]: Witness Printer took 7.41ms. Allocated memory is still 178.3MB. Free memory was 101.9MB in the beginning and 100.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:42:54,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.32ms. Allocated memory is still 138.4MB. Free memory was 107.4MB in the beginning and 89.0MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.60ms. Allocated memory is still 138.4MB. Free memory was 89.0MB in the beginning and 84.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.87ms. Allocated memory is still 138.4MB. Free memory was 84.9MB in the beginning and 82.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1961.80ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 82.3MB in the beginning and 133.3MB in the end (delta: -51.1MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * TraceAbstraction took 638.70ms. Allocated memory is still 178.3MB. Free memory was 132.3MB in the beginning and 101.9MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 7.41ms. Allocated memory is still 178.3MB. Free memory was 101.9MB in the beginning and 100.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 123, overapproximation of bitwiseAnd at line 107. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 32); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (32 - 1); [L31] const SORT_43 mask_SORT_43 = (SORT_43)-1 >> (sizeof(SORT_43) * 8 - 3); [L32] const SORT_43 msb_SORT_43 = (SORT_43)1 << (3 - 1); [L34] const SORT_97 mask_SORT_97 = (SORT_97)-1 >> (sizeof(SORT_97) * 8 - 6); [L35] const SORT_97 msb_SORT_97 = (SORT_97)1 << (6 - 1); [L37] const SORT_135 mask_SORT_135 = (SORT_135)-1 >> (sizeof(SORT_135) * 8 - 2); [L38] const SORT_135 msb_SORT_135 = (SORT_135)1 << (2 - 1); [L40] const SORT_1 var_5 = 0; [L41] const SORT_1 var_13 = 1; [L42] const SORT_43 var_75 = 0; [L43] const SORT_3 var_94 = 0; [L44] const SORT_97 var_99 = 0; [L45] const SORT_43 var_113 = 2; [L46] const SORT_43 var_114 = 1; [L47] const SORT_97 var_115 = 4; [L48] const SORT_97 var_118 = 2; [L49] const SORT_97 var_122 = 8; [L50] const SORT_43 var_125 = 4; [L51] const SORT_97 var_126 = 43; [L52] const SORT_97 var_129 = 35; [L53] const SORT_97 var_133 = 5; [L55] SORT_1 input_2; [L56] SORT_3 input_4; [L57] SORT_1 input_55; [L58] SORT_1 input_80; [L59] SORT_43 input_88; [L60] SORT_43 input_89; [L61] SORT_43 input_90; [L62] SORT_43 input_91; [L63] SORT_43 input_92; [L64] SORT_43 input_93; [L65] SORT_43 input_103; [L66] SORT_43 input_109; [L67] SORT_43 input_141; [L68] SORT_43 input_144; [L70] SORT_1 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_43 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L79] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_43 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L81] SORT_3 state_47 = __VERIFIER_nondet_uint() & mask_SORT_3; [L82] SORT_43 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L83] SORT_1 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 init_7_arg_1 = var_5; [L86] state_6 = init_7_arg_1 [L87] SORT_1 init_10_arg_1 = var_5; [L88] state_9 = init_10_arg_1 [L89] SORT_1 init_15_arg_1 = var_13; [L90] state_14 = init_15_arg_1 [L91] SORT_1 init_19_arg_1 = var_5; [L92] state_18 = init_19_arg_1 [L93] SORT_1 init_23_arg_1 = var_5; [L94] state_22 = init_23_arg_1 [L95] SORT_1 init_26_arg_1 = var_5; [L96] state_25 = init_26_arg_1 [L97] SORT_1 init_30_arg_1 = var_5; [L98] state_29 = init_30_arg_1 [L99] SORT_1 init_34_arg_1 = var_5; [L100] state_33 = init_34_arg_1 [L101] SORT_1 init_53_arg_1 = var_5; [L102] state_52 = init_53_arg_1 VAL [init_10_arg_1=0, init_15_arg_1=1, init_19_arg_1=0, init_23_arg_1=0, init_26_arg_1=0, init_30_arg_1=0, init_34_arg_1=0, init_53_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_135=3, mask_SORT_3=4294967295, mask_SORT_43=7, mask_SORT_97=63, msb_SORT_1=1, msb_SORT_135=2, msb_SORT_3=2147483648, msb_SORT_43=4, msb_SORT_97=32, state_14=1, state_18=0, state_22=0, state_25=0, state_29=0, state_33=0, state_44=0, state_45=0, state_46=0, state_47=0, state_51=0, state_52=0, state_6=0, state_9=0, var_113=2, var_114=1, var_115=4, var_118=2, var_122=8, var_125=4, var_126=43, var_129=35, var_13=1, var_133=5, var_5=0, var_75=0, var_94=0, var_99=0] [L105] input_2 = __VERIFIER_nondet_uchar() [L106] input_4 = __VERIFIER_nondet_uint() [L107] input_4 = input_4 & mask_SORT_3 [L108] input_55 = __VERIFIER_nondet_uchar() [L109] input_80 = __VERIFIER_nondet_uchar() [L110] input_88 = __VERIFIER_nondet_uchar() [L111] input_89 = __VERIFIER_nondet_uchar() [L112] input_90 = __VERIFIER_nondet_uchar() [L113] input_91 = __VERIFIER_nondet_uchar() [L114] input_92 = __VERIFIER_nondet_uchar() [L115] input_93 = __VERIFIER_nondet_uchar() [L116] input_103 = __VERIFIER_nondet_uchar() [L117] input_109 = __VERIFIER_nondet_uchar() [L118] input_141 = __VERIFIER_nondet_uchar() [L119] input_144 = __VERIFIER_nondet_uchar() [L122] SORT_1 var_8_arg_0 = state_6; [L123] SORT_1 var_8 = ~var_8_arg_0; [L124] SORT_1 var_11_arg_0 = state_9; [L125] SORT_1 var_11 = ~var_11_arg_0; [L126] SORT_1 var_12_arg_0 = var_8; [L127] SORT_1 var_12_arg_1 = var_11; [L128] SORT_1 var_12 = var_12_arg_0 & var_12_arg_1; [L129] SORT_1 var_16_arg_0 = state_14; [L130] SORT_1 var_16 = ~var_16_arg_0; [L131] SORT_1 var_17_arg_0 = var_12; [L132] SORT_1 var_17_arg_1 = var_16; [L133] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L134] SORT_1 var_20_arg_0 = state_18; [L135] SORT_1 var_20 = ~var_20_arg_0; [L136] SORT_1 var_21_arg_0 = var_17; [L137] SORT_1 var_21_arg_1 = var_20; [L138] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L139] SORT_1 var_24_arg_0 = var_21; [L140] SORT_1 var_24_arg_1 = state_22; [L141] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L142] SORT_1 var_27_arg_0 = state_25; [L143] SORT_1 var_27 = ~var_27_arg_0; [L144] SORT_1 var_28_arg_0 = var_24; [L145] SORT_1 var_28_arg_1 = var_27; [L146] SORT_1 var_28 = var_28_arg_0 & var_28_arg_1; [L147] SORT_1 var_31_arg_0 = state_29; [L148] SORT_1 var_31 = ~var_31_arg_0; [L149] SORT_1 var_32_arg_0 = var_28; [L150] SORT_1 var_32_arg_1 = var_31; [L151] SORT_1 var_32 = var_32_arg_0 & var_32_arg_1; [L152] SORT_1 var_35_arg_0 = state_33; [L153] SORT_1 var_35 = ~var_35_arg_0; [L154] SORT_1 var_36_arg_0 = var_32; [L155] SORT_1 var_36_arg_1 = var_35; [L156] SORT_1 var_36 = var_36_arg_0 & var_36_arg_1; [L157] SORT_1 var_37_arg_0 = var_36; [L158] SORT_1 var_37 = ~var_37_arg_0; [L159] SORT_1 var_40_arg_0 = var_37; [L160] SORT_1 var_40 = ~var_40_arg_0; [L161] SORT_1 var_41_arg_0 = var_13; [L162] SORT_1 var_41_arg_1 = var_40; [L163] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L164] var_41 = var_41 & mask_SORT_1 [L165] SORT_1 bad_42_arg_0 = var_41; [L166] CALL __VERIFIER_assert(!(bad_42_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 13:42:54,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0b6b79cb1fa4accf5125a3420115b0b09b98cba7b1efdd830c177a3c1ffb8598 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 13:42:57,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:42:57,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:42:57,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:42:57,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:42:57,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:42:57,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:42:57,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:42:57,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:42:57,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:42:57,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:42:57,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:42:57,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:42:57,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:42:57,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:42:57,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:42:57,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:42:57,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:42:57,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:42:57,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:42:57,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:42:57,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:42:57,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:42:57,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:42:57,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:42:57,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:42:57,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:42:57,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:42:57,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:42:57,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:42:57,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:42:57,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:42:57,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:42:57,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:42:57,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:42:57,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:42:57,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:42:57,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:42:57,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:42:57,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:42:57,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:42:57,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 13:42:57,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:42:57,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:42:57,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:42:57,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:42:57,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:42:57,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:42:57,614 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:42:57,614 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:42:57,614 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:42:57,615 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:42:57,616 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:42:57,616 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:42:57,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:42:57,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:42:57,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:42:57,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:42:57,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:42:57,617 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 13:42:57,617 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 13:42:57,618 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 13:42:57,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:42:57,618 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:42:57,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:42:57,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:42:57,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 13:42:57,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:42:57,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:42:57,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:42:57,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:42:57,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:42:57,620 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 13:42:57,620 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 13:42:57,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:42:57,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:42:57,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 13:42:57,621 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_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b6b79cb1fa4accf5125a3420115b0b09b98cba7b1efdd830c177a3c1ffb8598 [2022-11-23 13:42:58,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:42:58,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:42:58,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:42:58,052 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:42:58,053 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:42:58,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c [2022-11-23 13:43:01,040 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:43:01,303 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:43:01,304 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c [2022-11-23 13:43:01,313 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/data/2a5596e3e/f236d014d4354d758c11e2d9be6291a8/FLAGd585540f7 [2022-11-23 13:43:01,332 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/data/2a5596e3e/f236d014d4354d758c11e2d9be6291a8 [2022-11-23 13:43:01,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:43:01,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:43:01,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:43:01,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:43:01,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:43:01,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d807c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01, skipping insertion in model container [2022-11-23 13:43:01,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:43:01,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:43:01,555 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_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1107,1120] [2022-11-23 13:43:01,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:43:01,675 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:43:01,686 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_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1107,1120] [2022-11-23 13:43:01,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:43:01,850 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:43:01,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01 WrapperNode [2022-11-23 13:43:01,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:43:01,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:43:01,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:43:01,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:43:01,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,942 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 392 [2022-11-23 13:43:01,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:43:01,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:43:01,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:43:01,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:43:01,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,984 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:43:01,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:43:01,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:43:01,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:43:01,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (1/1) ... [2022-11-23 13:43:01,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:43:02,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:43:02,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:43:02,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:43:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:43:02,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:43:02,266 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:43:02,268 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:43:02,795 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:43:02,802 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:43:02,802 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 13:43:02,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:43:02 BoogieIcfgContainer [2022-11-23 13:43:02,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:43:02,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:43:02,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:43:02,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:43:02,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:43:01" (1/3) ... [2022-11-23 13:43:02,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76326425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:43:02, skipping insertion in model container [2022-11-23 13:43:02,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:01" (2/3) ... [2022-11-23 13:43:02,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76326425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:43:02, skipping insertion in model container [2022-11-23 13:43:02,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:43:02" (3/3) ... [2022-11-23 13:43:02,813 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.zaher.c [2022-11-23 13:43:02,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:43:02,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:43:02,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:43:02,925 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;@3fe59d72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:43:02,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:43:02,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:43:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 13:43:02,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:43:02,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 13:43:02,935 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:43:02,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:43:02,941 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 13:43:02,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:43:02,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332505584] [2022-11-23 13:43:02,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:43:02,963 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:43:02,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:43:02,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:43:02,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 13:43:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:43:03,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 13:43:03,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:43:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:43:03,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:43:03,331 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:43:03,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332505584] [2022-11-23 13:43:03,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332505584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:43:03,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:43:03,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:43:03,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571150520] [2022-11-23 13:43:03,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:43:03,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:43:03,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:43:03,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:43:03,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:43:03,396 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:43:03,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:43:03,478 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 13:43:03,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:43:03,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 13:43:03,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:43:03,488 INFO L225 Difference]: With dead ends: 20 [2022-11-23 13:43:03,489 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 13:43:03,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:43:03,496 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:43:03,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:43:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 13:43:03,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 13:43:03,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:43:03,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 13:43:03,530 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 13:43:03,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:43:03,530 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 13:43:03,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:43:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 13:43:03,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 13:43:03,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:43:03,532 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 13:43:03,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-23 13:43:03,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:43:03,742 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:43:03,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:43:03,743 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 13:43:03,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:43:03,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340291090] [2022-11-23 13:43:03,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:43:03,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:43:03,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:43:03,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:43:03,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 13:43:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:43:04,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-23 13:43:04,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:43:04,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:43:04,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:43:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:43:04,385 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:43:04,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340291090] [2022-11-23 13:43:04,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340291090] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:43:04,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1988447189] [2022-11-23 13:43:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:43:04,391 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 13:43:04,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 13:43:04,394 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 13:43:04,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 13:43:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:43:04,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-23 13:43:04,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:43:04,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:43:04,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:43:05,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:43:05,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1988447189] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:43:05,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773119390] [2022-11-23 13:43:05,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:43:05,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:43:05,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:43:05,053 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:43:05,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 13:43:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:43:05,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-23 13:43:05,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:43:05,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:43:05,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:43:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:43:05,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773119390] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:43:05,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 13:43:05,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-23 13:43:05,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948794849] [2022-11-23 13:43:05,556 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 13:43:05,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 13:43:05,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:43:05,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 13:43:05,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-23 13:43:05,558 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:43:05,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:43:05,792 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-11-23 13:43:05,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:43:05,794 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 13:43:05,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:43:05,795 INFO L225 Difference]: With dead ends: 10 [2022-11-23 13:43:05,795 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 13:43:05,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-23 13:43:05,796 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:43:05,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:43:05,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 13:43:05,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 13:43:05,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:43:05,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 13:43:05,798 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-23 13:43:05,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:43:05,798 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 13:43:05,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:43:05,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 13:43:05,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 13:43:05,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 13:43:05,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-23 13:43:06,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 13:43:06,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 13:43:06,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:43:06,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 13:43:06,459 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 13:43:06,460 INFO L895 garLoopResultBuilder]: At program point L391(lines 22 392) the Hoare annotation is: false [2022-11-23 13:43:06,460 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 13:43:06,460 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 13:43:06,460 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 13:43:06,461 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-23 13:43:06,461 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-23 13:43:06,461 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-23 13:43:06,461 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-23 13:43:06,462 INFO L895 garLoopResultBuilder]: At program point L103-2(lines 103 390) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_5~0#1| (_ bv0 8)))) (or (and .cse0 .cse1 (= (_ bv0 8) |ULTIMATE.start_main_~state_22~0#1|) (forall ((|v_ULTIMATE.start_main_~var_24_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_32_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_36_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_17_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_21_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_41_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_28_arg_1~0#1_3| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_36_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_28_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_24_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~state_14~0#1|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_0~0#1_3|))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_1~0#1_3|))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_41_arg_0~0#1_3|)))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (_ bv0 8)))) (and .cse0 .cse1 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= (bvadd (_ bv1 8) |ULTIMATE.start_main_~state_14~0#1|) (_ bv0 8))))) [2022-11-23 13:43:06,462 INFO L899 garLoopResultBuilder]: For program point L103-3(lines 103 390) no Hoare annotation was computed. [2022-11-23 13:43:06,466 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 13:43:06,468 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:43:06,475 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,476 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,477 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,477 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,477 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,478 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,478 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,493 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,493 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,493 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,494 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,494 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,495 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,495 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:43:06 BoogieIcfgContainer [2022-11-23 13:43:06,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:43:06,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:43:06,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:43:06,500 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:43:06,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:43:02" (3/4) ... [2022-11-23 13:43:06,503 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 13:43:06,528 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-23 13:43:06,528 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 13:43:06,529 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 13:43:06,604 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 13:43:06,604 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:43:06,605 INFO L158 Benchmark]: Toolchain (without parser) took 5269.59ms. Allocated memory was 75.5MB in the beginning and 138.4MB in the end (delta: 62.9MB). Free memory was 52.8MB in the beginning and 102.0MB in the end (delta: -49.2MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2022-11-23 13:43:06,606 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:43:06,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.30ms. Allocated memory is still 75.5MB. Free memory was 52.6MB in the beginning and 52.1MB in the end (delta: 472.6kB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-11-23 13:43:06,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.20ms. Allocated memory is still 75.5MB. Free memory was 52.1MB in the beginning and 48.5MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:43:06,607 INFO L158 Benchmark]: Boogie Preprocessor took 44.00ms. Allocated memory is still 75.5MB. Free memory was 48.5MB in the beginning and 46.1MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 13:43:06,607 INFO L158 Benchmark]: RCFGBuilder took 812.50ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 46.1MB in the beginning and 46.6MB in the end (delta: -537.9kB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-11-23 13:43:06,607 INFO L158 Benchmark]: TraceAbstraction took 3691.68ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 46.2MB in the beginning and 108.3MB in the end (delta: -62.1MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-11-23 13:43:06,608 INFO L158 Benchmark]: Witness Printer took 105.59ms. Allocated memory is still 138.4MB. Free memory was 108.3MB in the beginning and 102.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 13:43:06,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.30ms. Allocated memory is still 75.5MB. Free memory was 52.6MB in the beginning and 52.1MB in the end (delta: 472.6kB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.20ms. Allocated memory is still 75.5MB. Free memory was 52.1MB in the beginning and 48.5MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.00ms. Allocated memory is still 75.5MB. Free memory was 48.5MB in the beginning and 46.1MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 812.50ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 46.1MB in the beginning and 46.6MB in the end (delta: -537.9kB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3691.68ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 46.2MB in the beginning and 108.3MB in the end (delta: -62.1MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Witness Printer took 105.59ms. Allocated memory is still 138.4MB. Free memory was 108.3MB in the beginning and 102.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 7 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 80 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 12 QuantifiedInterpolants, 809 SizeOfPredicates, 133 NumberOfNonLiveVariables, 1260 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 103]: Loop Invariant [2022-11-23 13:43:06,619 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,620 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,620 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,620 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,621 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,621 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,622 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,622 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,623 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,623 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,623 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,624 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,624 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] [2022-11-23 13:43:06,625 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] Derived loop invariant: (((1bv8 == mask_SORT_1 && var_5 == 0bv8) && 0bv8 == state_22) && (forall v_ULTIMATE.start_main_~var_24_arg_1~0#1_3 : bv8, v_ULTIMATE.start_main_~var_32_arg_1~0#1_3 : bv8, v_ULTIMATE.start_main_~var_36_arg_1~0#1_3 : bv8, v_ULTIMATE.start_main_~var_17_arg_0~0#1_3 : bv8, v_ULTIMATE.start_main_~var_21_arg_1~0#1_3 : bv8, v_ULTIMATE.start_main_~var_41_arg_0~0#1_3 : bv8, v_ULTIMATE.start_main_~var_28_arg_1~0#1_3 : bv8 :: ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_36_arg_1~0#1_3), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_28_arg_1~0#1_3), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_24_arg_1~0#1_3), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_21_arg_1~0#1_3), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(state_14))[7:0]), ~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_17_arg_0~0#1_3))[7:0]))[7:0]))[7:0]))[7:0]), ~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_32_arg_1~0#1_3))[7:0]))[7:0]))[7:0]))[7:0]), ~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_41_arg_0~0#1_3))[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == 0bv8)) || (((1bv8 == mask_SORT_1 && var_5 == 0bv8) && cond == 1bv32) && ~bvadd128(1bv8, state_14) == 0bv8) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-23 13:43:06,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50430a4d-ee4b-48b1-a7e2-2f9be35e9301/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE