./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS --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 befb904cd2b526f469a674f619c2303531704fb38322dfe788ff99db09acbda8 --- 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-8393723 [2022-11-19 07:07:07,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:07:07,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:07:07,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:07:07,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:07:07,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:07:07,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:07:07,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:07:07,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:07:07,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:07:07,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:07:07,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:07:07,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:07:07,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:07:07,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:07:07,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:07:07,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:07:07,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:07:07,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:07:07,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:07:07,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:07:07,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:07:07,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:07:07,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:07:07,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:07:07,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:07:07,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:07:07,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:07:07,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:07:07,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:07:07,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:07:07,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:07:07,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:07:07,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:07:07,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:07:07,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:07:07,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:07:07,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:07:07,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:07:07,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:07:07,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:07:07,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:07:07,220 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:07:07,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:07:07,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:07:07,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:07:07,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:07:07,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:07:07,224 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:07:07,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:07:07,224 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:07:07,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:07:07,226 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:07:07,226 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:07:07,226 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:07:07,227 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:07:07,227 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:07:07,227 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:07:07,227 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:07:07,228 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:07:07,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:07:07,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:07:07,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:07:07,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:07:07,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:07:07,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:07:07,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:07:07,232 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:07:07,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:07:07,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:07:07,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:07:07,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:07:07,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:07:07,234 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:07:07,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:07:07,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:07:07,235 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:07:07,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:07:07,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:07:07,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:07:07,237 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_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> befb904cd2b526f469a674f619c2303531704fb38322dfe788ff99db09acbda8 [2022-11-19 07:07:07,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:07:07,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:07:07,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:07:07,608 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:07:07,609 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:07:07,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-19 07:07:07,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/data/5e2e06058/e296c0a8e7164841bd8053307dc7f9ac/FLAGc0d331dc4 [2022-11-19 07:07:08,528 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:07:08,529 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-19 07:07:08,571 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/data/5e2e06058/e296c0a8e7164841bd8053307dc7f9ac/FLAGc0d331dc4 [2022-11-19 07:07:08,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/data/5e2e06058/e296c0a8e7164841bd8053307dc7f9ac [2022-11-19 07:07:08,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:07:08,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:07:08,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:07:08,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:07:08,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:07:08,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:07:08" (1/1) ... [2022-11-19 07:07:08,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@150587eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:08, skipping insertion in model container [2022-11-19 07:07:08,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:07:08" (1/1) ... [2022-11-19 07:07:08,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:07:08,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:07:09,078 WARN L234 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_63943a45-5e44-4a49-8c22-3ae0be210d8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c[1014,1027] [2022-11-19 07:07:09,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:07:09,627 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:07:09,645 WARN L234 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_63943a45-5e44-4a49-8c22-3ae0be210d8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c[1014,1027] [2022-11-19 07:07:09,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:07:09,982 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:07:09,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09 WrapperNode [2022-11-19 07:07:09,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:07:09,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:07:09,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:07:09,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:07:09,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (1/1) ... [2022-11-19 07:07:10,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (1/1) ... [2022-11-19 07:07:10,381 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4967 [2022-11-19 07:07:10,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:07:10,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:07:10,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:07:10,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:07:10,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (1/1) ... [2022-11-19 07:07:10,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (1/1) ... [2022-11-19 07:07:10,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (1/1) ... [2022-11-19 07:07:10,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (1/1) ... [2022-11-19 07:07:10,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (1/1) ... [2022-11-19 07:07:10,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (1/1) ... [2022-11-19 07:07:10,678 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (1/1) ... [2022-11-19 07:07:10,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (1/1) ... [2022-11-19 07:07:10,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:07:10,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:07:10,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:07:10,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:07:10,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (1/1) ... [2022-11-19 07:07:10,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:07:10,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:07:10,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:07:10,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:07:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:07:10,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:07:11,701 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:07:11,705 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:07:21,048 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:08:00,350 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:08:00,351 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:08:00,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:08:00 BoogieIcfgContainer [2022-11-19 07:08:00,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:08:00,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:08:00,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:08:00,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:08:00,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:07:08" (1/3) ... [2022-11-19 07:08:00,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42692f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:08:00, skipping insertion in model container [2022-11-19 07:08:00,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:09" (2/3) ... [2022-11-19 07:08:00,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42692f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:08:00, skipping insertion in model container [2022-11-19 07:08:00,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:08:00" (3/3) ... [2022-11-19 07:08:00,366 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-19 07:08:00,390 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:08:00,391 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:08:00,448 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:08:00,456 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;@74599e86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:08:00,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:08:00,462 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) [2022-11-19 07:08:00,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:08:00,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:08:00,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:08:00,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:08:00,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:08:00,478 INFO L85 PathProgramCache]: Analyzing trace with hash 94514567, now seen corresponding path program 1 times [2022-11-19 07:08:00,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:08:00,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001476373] [2022-11-19 07:08:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:08:00,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:08:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:08:01,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:08:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:08:01,489 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:08:01,491 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:08:01,492 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:08:01,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:08:01,501 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 07:08:01,507 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:08:01,575 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:08:01,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:08:01 BoogieIcfgContainer [2022-11-19 07:08:01,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:08:01,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:08:01,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:08:01,609 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:08:01,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:08:00" (3/4) ... [2022-11-19 07:08:01,615 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:08:01,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:08:01,616 INFO L158 Benchmark]: Toolchain (without parser) took 52984.19ms. Allocated memory was 113.2MB in the beginning and 7.7GB in the end (delta: 7.6GB). Free memory was 72.3MB in the beginning and 7.1GB in the end (delta: -7.0GB). Peak memory consumption was 594.7MB. Max. memory is 16.1GB. [2022-11-19 07:08:01,617 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 93.9MB in the beginning and 93.8MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:08:01,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1344.25ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 72.0MB in the beginning and 68.3MB in the end (delta: 3.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-19 07:08:01,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 397.54ms. Allocated memory is still 144.7MB. Free memory was 68.3MB in the beginning and 60.9MB in the end (delta: 7.4MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2022-11-19 07:08:01,620 INFO L158 Benchmark]: Boogie Preprocessor took 357.45ms. Allocated memory is still 144.7MB. Free memory was 60.9MB in the beginning and 59.6MB in the end (delta: 1.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-19 07:08:01,621 INFO L158 Benchmark]: RCFGBuilder took 49614.06ms. Allocated memory was 144.7MB in the beginning and 7.7GB in the end (delta: 7.6GB). Free memory was 59.6MB in the beginning and 7.2GB in the end (delta: -7.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2022-11-19 07:08:01,622 INFO L158 Benchmark]: TraceAbstraction took 1248.57ms. Allocated memory is still 7.7GB. Free memory was 7.2GB in the beginning and 7.1GB in the end (delta: 90.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. [2022-11-19 07:08:01,622 INFO L158 Benchmark]: Witness Printer took 6.74ms. Allocated memory is still 7.7GB. Free memory is still 7.1GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:08:01,626 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 93.9MB in the beginning and 93.8MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1344.25ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 72.0MB in the beginning and 68.3MB in the end (delta: 3.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 397.54ms. Allocated memory is still 144.7MB. Free memory was 68.3MB in the beginning and 60.9MB in the end (delta: 7.4MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 357.45ms. Allocated memory is still 144.7MB. Free memory was 60.9MB in the beginning and 59.6MB in the end (delta: 1.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * RCFGBuilder took 49614.06ms. Allocated memory was 144.7MB in the beginning and 7.7GB in the end (delta: 7.6GB). Free memory was 59.6MB in the beginning and 7.2GB in the end (delta: -7.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * TraceAbstraction took 1248.57ms. Allocated memory is still 7.7GB. Free memory was 7.2GB in the beginning and 7.1GB in the end (delta: 90.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. * Witness Printer took 6.74ms. Allocated memory is still 7.7GB. Free memory is still 7.1GB. There was no memory consumed. Max. memory is 16.1GB. * 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 325, overapproximation of bitwiseAnd at line 239. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_32 = 0; [L39] const SORT_4 var_95 = 1; [L40] const SORT_4 var_96 = 0; [L41] const SORT_2 var_111 = 1; [L42] const SORT_3 var_113 = 0; [L43] const SORT_4 var_116 = 6; [L44] const SORT_2 var_126 = 0; [L45] const SORT_4 var_239 = 2; [L46] const SORT_4 var_277 = 3; [L47] const SORT_4 var_315 = 4; [L48] const SORT_4 var_353 = 5; [L49] const SORT_2 var_566 = 5; [L50] const SORT_2 var_576 = 2; [L51] const SORT_2 var_578 = 3; [L52] const SORT_2 var_580 = 4; [L54] SORT_1 input_112; [L55] SORT_1 input_120; [L56] SORT_1 input_127; [L57] SORT_1 input_133; [L58] SORT_1 input_139; [L59] SORT_1 input_145; [L60] SORT_1 input_151; [L61] SORT_1 input_157; [L62] SORT_1 input_163; [L63] SORT_1 input_169; [L64] SORT_1 input_175; [L65] SORT_1 input_181; [L66] SORT_1 input_391; [L67] SORT_1 input_395; [L68] SORT_1 input_398; [L69] SORT_1 input_399; [L70] SORT_1 input_400; [L71] SORT_1 input_401; [L72] SORT_1 input_402; [L73] SORT_1 input_403; [L74] SORT_1 input_404; [L75] SORT_1 input_405; [L76] SORT_1 input_406; [L77] SORT_1 input_407; [L78] SORT_1 input_421; [L79] SORT_1 input_427; [L80] SORT_1 input_433; [L81] SORT_1 input_439; [L82] SORT_1 input_445; [L83] SORT_1 input_451; [L84] SORT_1 input_466; [L85] SORT_1 input_484; [L86] SORT_1 input_502; [L87] SORT_1 input_520; [L88] SORT_1 input_538; [L89] SORT_1 input_556; [L91] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L92] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L102] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L103] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L104] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_2 init_7_arg_1 = var_5; [L137] state_6 = init_7_arg_1 [L138] SORT_2 init_9_arg_1 = var_5; [L139] state_8 = init_9_arg_1 [L140] SORT_2 init_11_arg_1 = var_5; [L141] state_10 = init_11_arg_1 [L142] SORT_2 init_13_arg_1 = var_5; [L143] state_12 = init_13_arg_1 [L144] SORT_2 init_15_arg_1 = var_5; [L145] state_14 = init_15_arg_1 [L146] SORT_2 init_17_arg_1 = var_5; [L147] state_16 = init_17_arg_1 [L148] SORT_2 init_19_arg_1 = var_5; [L149] state_18 = init_19_arg_1 [L150] SORT_2 init_21_arg_1 = var_5; [L151] state_20 = init_21_arg_1 [L152] SORT_2 init_23_arg_1 = var_5; [L153] state_22 = init_23_arg_1 [L154] SORT_2 init_25_arg_1 = var_5; [L155] state_24 = init_25_arg_1 [L156] SORT_2 init_27_arg_1 = var_5; [L157] state_26 = init_27_arg_1 [L158] SORT_2 init_29_arg_1 = var_5; [L159] state_28 = init_29_arg_1 [L160] SORT_2 init_31_arg_1 = var_5; [L161] state_30 = init_31_arg_1 [L162] SORT_1 init_34_arg_1 = var_32; [L163] state_33 = init_34_arg_1 [L164] SORT_1 init_36_arg_1 = var_32; [L165] state_35 = init_36_arg_1 [L166] SORT_1 init_38_arg_1 = var_32; [L167] state_37 = init_38_arg_1 [L168] SORT_1 init_40_arg_1 = var_32; [L169] state_39 = init_40_arg_1 [L170] SORT_1 init_42_arg_1 = var_32; [L171] state_41 = init_42_arg_1 [L172] SORT_1 init_44_arg_1 = var_32; [L173] state_43 = init_44_arg_1 [L174] SORT_1 init_46_arg_1 = var_32; [L175] state_45 = init_46_arg_1 [L176] SORT_1 init_48_arg_1 = var_32; [L177] state_47 = init_48_arg_1 [L178] SORT_1 init_50_arg_1 = var_32; [L179] state_49 = init_50_arg_1 [L180] SORT_1 init_52_arg_1 = var_32; [L181] state_51 = init_52_arg_1 [L182] SORT_1 init_54_arg_1 = var_32; [L183] state_53 = init_54_arg_1 [L184] SORT_1 init_56_arg_1 = var_32; [L185] state_55 = init_56_arg_1 [L186] SORT_1 init_58_arg_1 = var_32; [L187] state_57 = init_58_arg_1 [L188] SORT_1 init_60_arg_1 = var_32; [L189] state_59 = init_60_arg_1 [L190] SORT_1 init_62_arg_1 = var_32; [L191] state_61 = init_62_arg_1 [L192] SORT_1 init_64_arg_1 = var_32; [L193] state_63 = init_64_arg_1 [L194] SORT_1 init_66_arg_1 = var_32; [L195] state_65 = init_66_arg_1 [L196] SORT_1 init_68_arg_1 = var_32; [L197] state_67 = init_68_arg_1 [L198] SORT_1 init_70_arg_1 = var_32; [L199] state_69 = init_70_arg_1 [L200] SORT_1 init_72_arg_1 = var_32; [L201] state_71 = init_72_arg_1 [L202] SORT_1 init_74_arg_1 = var_32; [L203] state_73 = init_74_arg_1 [L204] SORT_1 init_76_arg_1 = var_32; [L205] state_75 = init_76_arg_1 [L206] SORT_1 init_78_arg_1 = var_32; [L207] state_77 = init_78_arg_1 [L208] SORT_1 init_80_arg_1 = var_32; [L209] state_79 = init_80_arg_1 [L210] SORT_1 init_82_arg_1 = var_32; [L211] state_81 = init_82_arg_1 [L212] SORT_1 init_84_arg_1 = var_32; [L213] state_83 = init_84_arg_1 [L214] SORT_1 init_86_arg_1 = var_32; [L215] state_85 = init_86_arg_1 [L216] SORT_1 init_88_arg_1 = var_32; [L217] state_87 = init_88_arg_1 [L218] SORT_1 init_90_arg_1 = var_32; [L219] state_89 = init_90_arg_1 [L220] SORT_1 init_92_arg_1 = var_32; [L221] state_91 = init_92_arg_1 [L222] SORT_1 init_94_arg_1 = var_32; [L223] state_93 = init_94_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0] [L226] input_112 = __VERIFIER_nondet_uchar() [L227] input_120 = __VERIFIER_nondet_uchar() [L228] input_127 = __VERIFIER_nondet_uchar() [L229] input_133 = __VERIFIER_nondet_uchar() [L230] input_139 = __VERIFIER_nondet_uchar() [L231] input_145 = __VERIFIER_nondet_uchar() [L232] input_151 = __VERIFIER_nondet_uchar() [L233] input_157 = __VERIFIER_nondet_uchar() [L234] input_163 = __VERIFIER_nondet_uchar() [L235] input_169 = __VERIFIER_nondet_uchar() [L236] input_175 = __VERIFIER_nondet_uchar() [L237] input_181 = __VERIFIER_nondet_uchar() [L238] input_391 = __VERIFIER_nondet_uchar() [L239] input_391 = input_391 & mask_SORT_1 [L240] input_395 = __VERIFIER_nondet_uchar() [L241] input_395 = input_395 & mask_SORT_1 [L242] input_398 = __VERIFIER_nondet_uchar() [L243] input_398 = input_398 & mask_SORT_1 [L244] input_399 = __VERIFIER_nondet_uchar() [L245] input_399 = input_399 & mask_SORT_1 [L246] input_400 = __VERIFIER_nondet_uchar() [L247] input_400 = input_400 & mask_SORT_1 [L248] input_401 = __VERIFIER_nondet_uchar() [L249] input_401 = input_401 & mask_SORT_1 [L250] input_402 = __VERIFIER_nondet_uchar() [L251] input_402 = input_402 & mask_SORT_1 [L252] input_403 = __VERIFIER_nondet_uchar() [L253] input_403 = input_403 & mask_SORT_1 [L254] input_404 = __VERIFIER_nondet_uchar() [L255] input_404 = input_404 & mask_SORT_1 [L256] input_405 = __VERIFIER_nondet_uchar() [L257] input_405 = input_405 & mask_SORT_1 [L258] input_406 = __VERIFIER_nondet_uchar() [L259] input_406 = input_406 & mask_SORT_1 [L260] input_407 = __VERIFIER_nondet_uchar() [L261] input_407 = input_407 & mask_SORT_1 [L262] input_421 = __VERIFIER_nondet_uchar() [L263] input_421 = input_421 & mask_SORT_1 [L264] input_427 = __VERIFIER_nondet_uchar() [L265] input_427 = input_427 & mask_SORT_1 [L266] input_433 = __VERIFIER_nondet_uchar() [L267] input_433 = input_433 & mask_SORT_1 [L268] input_439 = __VERIFIER_nondet_uchar() [L269] input_439 = input_439 & mask_SORT_1 [L270] input_445 = __VERIFIER_nondet_uchar() [L271] input_445 = input_445 & mask_SORT_1 [L272] input_451 = __VERIFIER_nondet_uchar() [L273] input_451 = input_451 & mask_SORT_1 [L274] input_466 = __VERIFIER_nondet_uchar() [L275] input_484 = __VERIFIER_nondet_uchar() [L276] input_502 = __VERIFIER_nondet_uchar() [L277] input_520 = __VERIFIER_nondet_uchar() [L278] input_538 = __VERIFIER_nondet_uchar() [L279] input_556 = __VERIFIER_nondet_uchar() [L282] SORT_1 var_97_arg_0 = state_41; [L283] SORT_4 var_97_arg_1 = var_95; [L284] SORT_4 var_97_arg_2 = var_96; [L285] SORT_4 var_97 = var_97_arg_0 ? var_97_arg_1 : var_97_arg_2; [L286] SORT_1 var_98_arg_0 = state_51; [L287] SORT_4 var_98_arg_1 = var_95; [L288] SORT_4 var_98_arg_2 = var_96; [L289] SORT_4 var_98 = var_98_arg_0 ? var_98_arg_1 : var_98_arg_2; [L290] SORT_4 var_99_arg_0 = var_97; [L291] SORT_4 var_99_arg_1 = var_98; [L292] SORT_4 var_99 = var_99_arg_0 + var_99_arg_1; [L293] SORT_1 var_100_arg_0 = state_61; [L294] SORT_4 var_100_arg_1 = var_95; [L295] SORT_4 var_100_arg_2 = var_96; [L296] SORT_4 var_100 = var_100_arg_0 ? var_100_arg_1 : var_100_arg_2; [L297] SORT_4 var_101_arg_0 = var_99; [L298] SORT_4 var_101_arg_1 = var_100; [L299] SORT_4 var_101 = var_101_arg_0 + var_101_arg_1; [L300] SORT_1 var_102_arg_0 = state_71; [L301] SORT_4 var_102_arg_1 = var_95; [L302] SORT_4 var_102_arg_2 = var_96; [L303] SORT_4 var_102 = var_102_arg_0 ? var_102_arg_1 : var_102_arg_2; [L304] SORT_4 var_103_arg_0 = var_101; [L305] SORT_4 var_103_arg_1 = var_102; [L306] SORT_4 var_103 = var_103_arg_0 + var_103_arg_1; [L307] SORT_1 var_104_arg_0 = state_81; [L308] SORT_4 var_104_arg_1 = var_95; [L309] SORT_4 var_104_arg_2 = var_96; [L310] SORT_4 var_104 = var_104_arg_0 ? var_104_arg_1 : var_104_arg_2; [L311] SORT_4 var_105_arg_0 = var_103; [L312] SORT_4 var_105_arg_1 = var_104; [L313] SORT_4 var_105 = var_105_arg_0 + var_105_arg_1; [L314] SORT_1 var_106_arg_0 = state_91; [L315] SORT_4 var_106_arg_1 = var_95; [L316] SORT_4 var_106_arg_2 = var_96; [L317] SORT_4 var_106 = var_106_arg_0 ? var_106_arg_1 : var_106_arg_2; [L318] SORT_4 var_107_arg_0 = var_105; [L319] SORT_4 var_107_arg_1 = var_106; [L320] SORT_4 var_107 = var_107_arg_0 + var_107_arg_1; [L321] var_107 = var_107 & mask_SORT_4 [L322] SORT_4 var_108_arg_0 = var_107; [L323] SORT_4 var_108_arg_1 = var_95; [L324] SORT_1 var_108 = var_108_arg_0 <= var_108_arg_1; [L325] SORT_1 var_109_arg_0 = ~state_93; [L326] var_109_arg_0 = var_109_arg_0 & mask_SORT_1 [L327] SORT_1 var_109_arg_1 = ~var_108; [L328] var_109_arg_1 = var_109_arg_1 & mask_SORT_1 [L329] SORT_1 var_109 = var_109_arg_0 & var_109_arg_1; [L330] var_109 = var_109 & mask_SORT_1 [L331] SORT_1 bad_110_arg_0 = var_109; [L332] CALL __VERIFIER_assert(!(bad_110_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, 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, 0.5s 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 [2022-11-19 07:08:01,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS --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 befb904cd2b526f469a674f619c2303531704fb38322dfe788ff99db09acbda8 --- 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-8393723 [2022-11-19 07:08:04,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:08:04,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:08:04,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:08:04,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:08:04,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:08:04,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:08:04,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:08:04,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:08:04,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:08:04,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:08:04,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:08:04,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:08:04,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:08:04,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:08:04,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:08:04,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:08:04,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:08:04,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:08:04,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:08:04,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:08:04,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:08:04,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:08:04,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:08:04,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:08:04,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:08:04,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:08:04,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:08:04,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:08:04,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:08:04,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:08:04,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:08:04,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:08:04,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:08:04,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:08:04,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:08:04,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:08:04,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:08:04,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:08:04,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:08:04,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:08:04,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 07:08:04,509 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:08:04,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:08:04,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:08:04,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:08:04,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:08:04,511 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:08:04,511 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:08:04,511 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:08:04,511 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:08:04,512 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:08:04,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:08:04,512 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:08:04,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:08:04,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:08:04,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:08:04,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:08:04,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:08:04,514 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:08:04,514 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:08:04,514 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:08:04,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:08:04,515 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:08:04,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:08:04,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:08:04,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:08:04,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:08:04,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:08:04,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:08:04,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:08:04,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:08:04,517 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:08:04,517 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:08:04,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:08:04,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:08:04,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:08:04,518 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_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> befb904cd2b526f469a674f619c2303531704fb38322dfe788ff99db09acbda8 [2022-11-19 07:08:04,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:08:04,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:08:04,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:08:04,969 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:08:04,970 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:08:04,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-19 07:08:05,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/data/addad321a/59d8d816331446c49c62d80329d22bc7/FLAG692bddb6c [2022-11-19 07:08:05,801 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:08:05,801 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-19 07:08:05,839 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/data/addad321a/59d8d816331446c49c62d80329d22bc7/FLAG692bddb6c [2022-11-19 07:08:05,961 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/data/addad321a/59d8d816331446c49c62d80329d22bc7 [2022-11-19 07:08:05,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:08:05,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:08:05,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:08:05,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:08:05,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:08:05,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:08:05" (1/1) ... [2022-11-19 07:08:05,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a6526a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:05, skipping insertion in model container [2022-11-19 07:08:05,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:08:05" (1/1) ... [2022-11-19 07:08:05,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:08:06,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:08:06,324 WARN L234 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_63943a45-5e44-4a49-8c22-3ae0be210d8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c[1014,1027] [2022-11-19 07:08:06,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:08:06,880 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:08:06,892 WARN L234 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_63943a45-5e44-4a49-8c22-3ae0be210d8c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c[1014,1027] [2022-11-19 07:08:07,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:08:07,203 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:08:07,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07 WrapperNode [2022-11-19 07:08:07,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:08:07,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:08:07,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:08:07,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:08:07,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (1/1) ... [2022-11-19 07:08:07,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (1/1) ... [2022-11-19 07:08:07,449 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3231 [2022-11-19 07:08:07,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:08:07,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:08:07,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:08:07,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:08:07,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (1/1) ... [2022-11-19 07:08:07,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (1/1) ... [2022-11-19 07:08:07,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (1/1) ... [2022-11-19 07:08:07,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (1/1) ... [2022-11-19 07:08:07,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (1/1) ... [2022-11-19 07:08:07,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (1/1) ... [2022-11-19 07:08:07,582 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (1/1) ... [2022-11-19 07:08:07,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (1/1) ... [2022-11-19 07:08:07,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:08:07,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:08:07,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:08:07,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:08:07,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (1/1) ... [2022-11-19 07:08:07,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:08:07,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:08:07,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:08:07,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:08:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:08:07,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:08:08,657 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:08:08,660 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:08:17,569 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:08:17,576 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:08:17,577 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:08:17,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:08:17 BoogieIcfgContainer [2022-11-19 07:08:17,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:08:17,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:08:17,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:08:17,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:08:17,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:08:05" (1/3) ... [2022-11-19 07:08:17,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415e8307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:08:17, skipping insertion in model container [2022-11-19 07:08:17,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:08:07" (2/3) ... [2022-11-19 07:08:17,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415e8307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:08:17, skipping insertion in model container [2022-11-19 07:08:17,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:08:17" (3/3) ... [2022-11-19 07:08:17,589 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-19 07:08:17,609 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:08:17,609 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:08:17,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:08:17,685 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;@640d5a1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:08:17,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:08:17,690 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) [2022-11-19 07:08:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:08:17,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:08:17,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:08:17,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:08:17,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:08:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 07:08:17,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:08:17,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743322045] [2022-11-19 07:08:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:08:17,724 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 [2022-11-19 07:08:17,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:08:17,731 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:08:17,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:08:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:08:18,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-19 07:08:18,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:08:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:08:19,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:08:19,198 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:08:19,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743322045] [2022-11-19 07:08:19,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743322045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:08:19,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:08:19,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:08:19,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185975860] [2022-11-19 07:08:19,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:08:19,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:08:19,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:08:19,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:08:19,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:08:19,252 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) [2022-11-19 07:08:21,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 07:08:22,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:08:22,068 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2022-11-19 07:08:22,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:08:22,071 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 [2022-11-19 07:08:22,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:08:22,079 INFO L225 Difference]: With dead ends: 19 [2022-11-19 07:08:22,079 INFO L226 Difference]: Without dead ends: 10 [2022-11-19 07:08:22,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:08:22,085 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:08:22,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-19 07:08:22,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-19 07:08:22,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-11-19 07:08:22,119 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) [2022-11-19 07:08:22,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 07:08:22,121 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 07:08:22,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:08:22,122 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 07:08:22,122 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) [2022-11-19 07:08:22,122 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 07:08:22,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:08:22,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:08:22,123 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:08:22,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:08:22,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:08:22,336 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:08:22,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:08:22,337 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 07:08:22,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:08:22,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563753696] [2022-11-19 07:08:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:08:22,342 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 [2022-11-19 07:08:22,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:08:22,344 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:08:22,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 07:08:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:08:31,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 2865 conjuncts, 210 conjunts are in the unsatisfiable core [2022-11-19 07:08:31,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:08:38,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:08:38,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:09:03,482 WARN L233 SmtUtils]: Spent 11.36s on a formula simplification. DAG size of input: 440 DAG size of output: 59 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:09:45,369 WARN L233 SmtUtils]: Spent 35.71s on a formula simplification that was a NOOP. DAG size: 397 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:09:47,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:09:47,217 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:09:47,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563753696] [2022-11-19 07:09:47,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563753696] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:09:47,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [45394464] [2022-11-19 07:09:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:09:47,218 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:09:47,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:09:47,223 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:09:47,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 07:09:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:09:52,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 2865 conjuncts, 212 conjunts are in the unsatisfiable core [2022-11-19 07:09:52,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:10:00,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:10:00,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:12:03,370 WARN L233 SmtUtils]: Spent 1.96m on a formula simplification. DAG size of input: 98 DAG size of output: 84 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:15:49,111 WARN L233 SmtUtils]: Spent 3.42m on a formula simplification. DAG size of input: 439 DAG size of output: 424 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:15:52,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:15:52,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [45394464] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:15:52,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497615447] [2022-11-19 07:15:52,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:15:52,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:15:52,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:15:52,330 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:15:52,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:15:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:15:54,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 2865 conjuncts, 215 conjunts are in the unsatisfiable core [2022-11-19 07:15:54,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:16:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:16:01,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:16:41,792 WARN L233 SmtUtils]: Spent 31.12s on a formula simplification. DAG size of input: 94 DAG size of output: 80 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:18:56,416 WARN L233 SmtUtils]: Spent 1.88m on a formula simplification that was a NOOP. DAG size: 427 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:21:05,506 WARN L233 SmtUtils]: Spent 1.88m on a formula simplification that was a NOOP. DAG size: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:21:07,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:07,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497615447] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:21:07,422 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:21:07,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 16 [2022-11-19 07:21:07,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432355442] [2022-11-19 07:21:07,425 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:21:07,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 07:21:07,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:21:07,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 07:21:07,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=160, Unknown=15, NotChecked=0, Total=240 [2022-11-19 07:21:07,429 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:10,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 07:21:10,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:10,552 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-19 07:21:10,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:21:10,553 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:21:10,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:10,554 INFO L225 Difference]: With dead ends: 15 [2022-11-19 07:21:10,554 INFO L226 Difference]: Without dead ends: 13 [2022-11-19 07:21:10,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 703.3s TimeCoverageRelationStatistics Valid=79, Invalid=178, Unknown=15, NotChecked=0, Total=272 [2022-11-19 07:21:10,556 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:10,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 32 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 1 Unknown, 23 Unchecked, 2.7s Time] [2022-11-19 07:21:10,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-19 07:21:10,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2022-11-19 07:21:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:10,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 07:21:10,565 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-19 07:21:10,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:10,565 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 07:21:10,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:10,566 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 07:21:10,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:21:10,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:10,567 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-19 07:21:10,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-19 07:21:10,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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)] Ended with exit code 0 [2022-11-19 07:21:11,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:11,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:11,168 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:21:11,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:11,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-19 07:21:11,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:21:11,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150552556] [2022-11-19 07:21:11,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:21:11,175 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 [2022-11-19 07:21:11,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:21:11,176 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 07:21:11,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63943a45-5e44-4a49-8c22-3ae0be210d8c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 07:21:28,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:21:28,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:21:28,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 5529 conjuncts, 446 conjunts are in the unsatisfiable core [2022-11-19 07:21:28,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:46,123 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:46,123 INFO L328 TraceCheckSpWp]: Computing backward predicates...