./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2ed99b30ac1df5d31daa869d277589d2838cb93 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2ed99b30ac1df5d31daa869d277589d2838cb93 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:47:30,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:47:30,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:47:31,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:47:31,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:47:31,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:47:31,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:47:31,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:47:31,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:47:31,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:47:31,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:47:31,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:47:31,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:47:31,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:47:31,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:47:31,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:47:31,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:47:31,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:47:31,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:47:31,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:47:31,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:47:31,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:47:31,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:47:31,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:47:31,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:47:31,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:47:31,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:47:31,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:47:31,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:47:31,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:47:31,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:47:31,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:47:31,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:47:31,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:47:31,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:47:31,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:47:31,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:47:31,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:47:31,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:47:31,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:47:31,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:47:31,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:47:31,222 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:47:31,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:47:31,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:47:31,225 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:47:31,225 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:47:31,225 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:47:31,226 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:47:31,226 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:47:31,226 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:47:31,226 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:47:31,228 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:47:31,229 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:47:31,229 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:47:31,229 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:47:31,230 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:47:31,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:47:31,231 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:47:31,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:47:31,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:47:31,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:47:31,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:47:31,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:47:31,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:47:31,233 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:47:31,233 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:47:31,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:47:31,234 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:47:31,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:47:31,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:47:31,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:47:31,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:47:31,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:47:31,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:47:31,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:47:31,239 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:47:31,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:47:31,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:47:31,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:47:31,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:47:31,240 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2ed99b30ac1df5d31daa869d277589d2838cb93 [2021-10-16 02:47:31,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:47:31,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:47:31,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:47:31,666 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:47:31,667 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:47:31,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2021-10-16 02:47:31,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/data/a3f0845a4/131c971bba7847128db1b5bbf7258971/FLAG682e3b3e1 [2021-10-16 02:47:32,324 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:47:32,325 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2021-10-16 02:47:32,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/data/a3f0845a4/131c971bba7847128db1b5bbf7258971/FLAG682e3b3e1 [2021-10-16 02:47:32,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/data/a3f0845a4/131c971bba7847128db1b5bbf7258971 [2021-10-16 02:47:32,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:47:32,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:47:32,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:47:32,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:47:32,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:47:32,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:47:32" (1/1) ... [2021-10-16 02:47:32,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d73134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:32, skipping insertion in model container [2021-10-16 02:47:32,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:47:32" (1/1) ... [2021-10-16 02:47:32,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:47:32,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:47:33,028 WARN L228 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_a6546218-b096-4ef9-b761-4cafacfc54a6/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2021-10-16 02:47:33,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:47:33,076 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:47:33,094 WARN L228 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_a6546218-b096-4ef9-b761-4cafacfc54a6/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2021-10-16 02:47:33,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:47:33,142 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:47:33,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33 WrapperNode [2021-10-16 02:47:33,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:47:33,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:47:33,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:47:33,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:47:33,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33" (1/1) ... [2021-10-16 02:47:33,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33" (1/1) ... [2021-10-16 02:47:33,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:47:33,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:47:33,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:47:33,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:47:33,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33" (1/1) ... [2021-10-16 02:47:33,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33" (1/1) ... [2021-10-16 02:47:33,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33" (1/1) ... [2021-10-16 02:47:33,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33" (1/1) ... [2021-10-16 02:47:33,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33" (1/1) ... [2021-10-16 02:47:33,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33" (1/1) ... [2021-10-16 02:47:33,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33" (1/1) ... [2021-10-16 02:47:33,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:47:33,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:47:33,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:47:33,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:47:33,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33" (1/1) ... [2021-10-16 02:47:33,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:47:33,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:47:33,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:47:33,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:47:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:47:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:47:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:47:33,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:47:33,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:47:33,808 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-16 02:47:33,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:47:33 BoogieIcfgContainer [2021-10-16 02:47:33,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:47:33,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:47:33,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:47:33,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:47:33,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:47:32" (1/3) ... [2021-10-16 02:47:33,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1cb720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:47:33, skipping insertion in model container [2021-10-16 02:47:33,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:33" (2/3) ... [2021-10-16 02:47:33,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1cb720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:47:33, skipping insertion in model container [2021-10-16 02:47:33,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:47:33" (3/3) ... [2021-10-16 02:47:33,831 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound10.c [2021-10-16 02:47:33,842 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:47:33,843 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 02:47:33,918 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:47:33,931 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:47:33,931 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 02:47:33,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 27 states have internal predecessors, (35), 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) [2021-10-16 02:47:33,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:47:33,988 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:33,989 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:47:33,990 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:47:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:34,009 INFO L82 PathProgramCache]: Analyzing trace with hash 3950384, now seen corresponding path program 1 times [2021-10-16 02:47:34,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:47:34,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219809101] [2021-10-16 02:47:34,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:34,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:47:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:34,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:34,359 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:47:34,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219809101] [2021-10-16 02:47:34,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219809101] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:34,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:34,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:47:34,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490279726] [2021-10-16 02:47:34,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:47:34,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:47:34,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:47:34,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:47:34,392 INFO L87 Difference]: Start difference. First operand has 28 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 27 states have internal predecessors, (35), 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 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-16 02:47:34,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:34,582 INFO L93 Difference]: Finished difference Result 78 states and 99 transitions. [2021-10-16 02:47:34,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:47:34,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-10-16 02:47:34,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:34,595 INFO L225 Difference]: With dead ends: 78 [2021-10-16 02:47:34,595 INFO L226 Difference]: Without dead ends: 47 [2021-10-16 02:47:34,599 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:47:34,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-16 02:47:34,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2021-10-16 02:47:34,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 34 states have internal predecessors, (38), 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) [2021-10-16 02:47:34,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2021-10-16 02:47:34,642 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 4 [2021-10-16 02:47:34,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:34,643 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-16 02:47:34,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-16 02:47:34,644 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2021-10-16 02:47:34,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:47:34,644 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:34,645 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:47:34,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:47:34,646 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:47:34,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:34,647 INFO L82 PathProgramCache]: Analyzing trace with hash -498492525, now seen corresponding path program 1 times [2021-10-16 02:47:34,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:47:34,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152127993] [2021-10-16 02:47:34,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:34,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:47:34,666 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:47:34,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022860038] [2021-10-16 02:47:34,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:34,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:47:34,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:47:34,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:47:34,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:47:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:34,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:47:34,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:34,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:34,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:34,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:34,977 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:47:34,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152127993] [2021-10-16 02:47:34,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:47:34,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022860038] [2021-10-16 02:47:34,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022860038] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:34,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:34,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:47:34,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006453618] [2021-10-16 02:47:34,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:47:34,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:47:34,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:47:34,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:47:34,982 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-16 02:47:35,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:35,090 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-10-16 02:47:35,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:47:35,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 6 [2021-10-16 02:47:35,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:35,093 INFO L225 Difference]: With dead ends: 47 [2021-10-16 02:47:35,093 INFO L226 Difference]: Without dead ends: 43 [2021-10-16 02:47:35,094 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.4ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:47:35,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-16 02:47:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2021-10-16 02:47:35,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 36 states have internal predecessors, (39), 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) [2021-10-16 02:47:35,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-10-16 02:47:35,103 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 6 [2021-10-16 02:47:35,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:35,103 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-10-16 02:47:35,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-16 02:47:35,104 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-10-16 02:47:35,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:47:35,105 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:35,105 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:35,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:35,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:47:35,319 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:47:35,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:35,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1985176726, now seen corresponding path program 1 times [2021-10-16 02:47:35,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:47:35,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930215236] [2021-10-16 02:47:35,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:35,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:47:35,334 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:47:35,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65755167] [2021-10-16 02:47:35,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:35,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:47:35,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:47:35,356 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:47:35,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 02:47:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:35,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:47:35,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:35,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:35,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:35,725 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:47:35,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930215236] [2021-10-16 02:47:35,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:47:35,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65755167] [2021-10-16 02:47:35,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65755167] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:35,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:35,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:47:35,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887586852] [2021-10-16 02:47:35,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:47:35,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:47:35,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:47:35,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:47:35,733 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-16 02:47:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:39,855 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2021-10-16 02:47:39,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:47:39,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 [2021-10-16 02:47:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:39,857 INFO L225 Difference]: With dead ends: 65 [2021-10-16 02:47:39,857 INFO L226 Difference]: Without dead ends: 53 [2021-10-16 02:47:39,858 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 41.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:47:39,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-16 02:47:39,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2021-10-16 02:47:39,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.263157894736842) internal successors, (48), 43 states have internal predecessors, (48), 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) [2021-10-16 02:47:39,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2021-10-16 02:47:39,870 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 8 [2021-10-16 02:47:39,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:39,870 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2021-10-16 02:47:39,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-16 02:47:39,871 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2021-10-16 02:47:39,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:47:39,872 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:39,872 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:39,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:40,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:47:40,099 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:47:40,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:40,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1294888167, now seen corresponding path program 1 times [2021-10-16 02:47:40,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:47:40,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843476624] [2021-10-16 02:47:40,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:40,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:47:40,117 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:47:40,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386568834] [2021-10-16 02:47:40,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:40,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:47:40,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:47:40,126 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:47:40,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 02:47:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:40,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 02:47:40,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:40,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:47:40,384 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:47:40,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843476624] [2021-10-16 02:47:40,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:47:40,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386568834] [2021-10-16 02:47:40,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386568834] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:47:40,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1873547176] [2021-10-16 02:47:40,406 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-16 02:47:40,407 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:47:40,411 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:47:40,417 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:47:40,417 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:47:40,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:47:40,458 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:47:40,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:47:40,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:47:40,462 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:47:40,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:47:40,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:47:40,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-10-16 02:47:40,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:47:40,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:47:40,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:47:40,615 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 02:47:40,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-16 02:47:40,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:47:40,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:47:40,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:47:40,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:47:40,627 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:47:40,635 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:47:40,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:47:40,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:47:40,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:47:40,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:47:40,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:47:40,640 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 02:47:40,645 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:47:40,646 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:47:40,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:47:40,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:47:40,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:47:40,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:47:40,650 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-16 02:47:40,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:40,737 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:47:40,746 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.0 percent of original size [2021-10-16 02:47:40,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-16 02:47:40,750 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:47:40,751 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:444, output treesize:125 [2021-10-16 02:47:40,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:40,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:47:40,972 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_17| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 02:47:40,983 INFO L168 Benchmark]: Toolchain (without parser) took 8291.98 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 52.7 MB in the beginning and 42.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:40,984 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory is still 69.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:47:40,984 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.99 ms. Allocated memory is still 92.3 MB. Free memory was 52.5 MB in the beginning and 68.1 MB in the end (delta: -15.6 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:40,985 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.29 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 66.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:40,986 INFO L168 Benchmark]: Boogie Preprocessor took 58.40 ms. Allocated memory is still 92.3 MB. Free memory was 66.5 MB in the beginning and 65.5 MB in the end (delta: 998.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:47:40,986 INFO L168 Benchmark]: RCFGBuilder took 549.97 ms. Allocated memory is still 92.3 MB. Free memory was 65.3 MB in the beginning and 52.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:40,987 INFO L168 Benchmark]: TraceAbstraction took 7169.67 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 52.3 MB in the beginning and 42.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:40,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory is still 69.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 446.99 ms. Allocated memory is still 92.3 MB. Free memory was 52.5 MB in the beginning and 68.1 MB in the end (delta: -15.6 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.29 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 66.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.40 ms. Allocated memory is still 92.3 MB. Free memory was 66.5 MB in the beginning and 65.5 MB in the end (delta: 998.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 549.97 ms. Allocated memory is still 92.3 MB. Free memory was 65.3 MB in the beginning and 52.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7169.67 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 52.3 MB in the beginning and 42.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_17| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_17|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:47:41,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:47:43,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:47:43,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:47:44,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:47:44,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:47:44,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:47:44,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:47:44,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:47:44,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:47:44,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:47:44,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:47:44,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:47:44,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:47:44,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:47:44,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:47:44,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:47:44,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:47:44,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:47:44,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:47:44,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:47:44,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:47:44,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:47:44,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:47:44,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:47:44,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:47:44,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:47:44,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:47:44,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:47:44,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:47:44,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:47:44,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:47:44,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:47:44,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:47:44,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:47:44,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:47:44,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:47:44,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:47:44,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:47:44,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:47:44,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:47:44,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:47:44,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:47:44,182 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:47:44,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:47:44,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:47:44,184 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:47:44,185 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:47:44,185 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:47:44,185 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:47:44,186 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:47:44,186 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:47:44,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:47:44,188 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:47:44,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:47:44,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:47:44,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:47:44,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:47:44,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:47:44,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:47:44,190 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:47:44,190 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:47:44,191 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:47:44,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:47:44,191 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:47:44,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:47:44,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:47:44,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:47:44,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:47:44,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:47:44,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:47:44,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:47:44,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:47:44,194 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:47:44,195 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:47:44,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:47:44,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:47:44,196 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:47:44,196 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_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2ed99b30ac1df5d31daa869d277589d2838cb93 [2021-10-16 02:47:44,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:47:44,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:47:44,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:47:44,671 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:47:44,672 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:47:44,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2021-10-16 02:47:44,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/data/cff6a787c/9b7deb3986d3497fb9a7f94eec7b2cce/FLAG261d4f64d [2021-10-16 02:47:45,451 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:47:45,452 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2021-10-16 02:47:45,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/data/cff6a787c/9b7deb3986d3497fb9a7f94eec7b2cce/FLAG261d4f64d [2021-10-16 02:47:45,791 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/data/cff6a787c/9b7deb3986d3497fb9a7f94eec7b2cce [2021-10-16 02:47:45,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:47:45,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:47:45,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:47:45,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:47:45,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:47:45,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:47:45" (1/1) ... [2021-10-16 02:47:45,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790eefb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:45, skipping insertion in model container [2021-10-16 02:47:45,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:47:45" (1/1) ... [2021-10-16 02:47:45,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:47:45,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:47:45,990 WARN L228 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_a6546218-b096-4ef9-b761-4cafacfc54a6/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2021-10-16 02:47:46,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:47:46,026 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:47:46,042 WARN L228 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_a6546218-b096-4ef9-b761-4cafacfc54a6/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2021-10-16 02:47:46,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:47:46,071 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:47:46,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46 WrapperNode [2021-10-16 02:47:46,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:47:46,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:47:46,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:47:46,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:47:46,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46" (1/1) ... [2021-10-16 02:47:46,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46" (1/1) ... [2021-10-16 02:47:46,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:47:46,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:47:46,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:47:46,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:47:46,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46" (1/1) ... [2021-10-16 02:47:46,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46" (1/1) ... [2021-10-16 02:47:46,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46" (1/1) ... [2021-10-16 02:47:46,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46" (1/1) ... [2021-10-16 02:47:46,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46" (1/1) ... [2021-10-16 02:47:46,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46" (1/1) ... [2021-10-16 02:47:46,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46" (1/1) ... [2021-10-16 02:47:46,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:47:46,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:47:46,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:47:46,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:47:46,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46" (1/1) ... [2021-10-16 02:47:46,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:47:46,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:47:46,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:47:46,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:47:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:47:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:47:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:47:46,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:47:47,251 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:47:47,251 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-16 02:47:47,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:47:47 BoogieIcfgContainer [2021-10-16 02:47:47,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:47:47,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:47:47,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:47:47,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:47:47,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:47:45" (1/3) ... [2021-10-16 02:47:47,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6602e834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:47:47, skipping insertion in model container [2021-10-16 02:47:47,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:46" (2/3) ... [2021-10-16 02:47:47,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6602e834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:47:47, skipping insertion in model container [2021-10-16 02:47:47,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:47:47" (3/3) ... [2021-10-16 02:47:47,263 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound10.c [2021-10-16 02:47:47,269 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:47:47,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 02:47:47,322 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:47:47,329 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:47:47,330 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 02:47:47,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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) [2021-10-16 02:47:47,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:47:47,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:47,350 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:47,350 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:47:47,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:47,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-16 02:47:47,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:47,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506180359] [2021-10-16 02:47:47,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:47,399 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:47,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:47,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:47,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:47:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:47,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:47:47,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:47,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:47,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:47,598 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:47,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506180359] [2021-10-16 02:47:47,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506180359] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:47,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:47,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:47:47,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166771204] [2021-10-16 02:47:47,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:47:47,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:47,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:47:47,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:47:47,630 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-16 02:47:47,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:47,653 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-10-16 02:47:47,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:47:47,655 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-10-16 02:47:47,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:47,665 INFO L225 Difference]: With dead ends: 63 [2021-10-16 02:47:47,666 INFO L226 Difference]: Without dead ends: 29 [2021-10-16 02:47:47,669 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:47:47,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-16 02:47:47,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-16 02:47:47,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 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) [2021-10-16 02:47:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-16 02:47:47,711 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-10-16 02:47:47,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:47,712 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-16 02:47:47,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-16 02:47:47,712 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-16 02:47:47,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:47:47,713 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:47,713 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:47,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:47,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:47,928 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:47:47,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:47,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-16 02:47:47,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:47,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090722421] [2021-10-16 02:47:47,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:47,932 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:47,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:47,934 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:47,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:47:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:48,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:47:48,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:48,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:48,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:48,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:48,512 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:48,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090722421] [2021-10-16 02:47:48,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090722421] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:48,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:48,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:47:48,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454286751] [2021-10-16 02:47:48,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:47:48,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:48,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:47:48,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:47:48,521 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-10-16 02:47:49,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:49,401 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2021-10-16 02:47:49,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 02:47:49,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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 7 [2021-10-16 02:47:49,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:49,410 INFO L225 Difference]: With dead ends: 50 [2021-10-16 02:47:49,410 INFO L226 Difference]: Without dead ends: 46 [2021-10-16 02:47:49,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 205.5ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:47:49,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-16 02:47:49,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 25. [2021-10-16 02:47:49,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 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) [2021-10-16 02:47:49,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-10-16 02:47:49,420 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 7 [2021-10-16 02:47:49,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:49,420 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-10-16 02:47:49,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-10-16 02:47:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-10-16 02:47:49,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:47:49,421 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:49,422 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:49,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:49,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:49,638 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:47:49,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:49,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-16 02:47:49,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:49,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382692888] [2021-10-16 02:47:49,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:49,641 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:49,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:49,649 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:49,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:47:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:49,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:47:49,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:49,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:49,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:51,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:51,425 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:51,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382692888] [2021-10-16 02:47:51,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382692888] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:51,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:51,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:47:51,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152160972] [2021-10-16 02:47:51,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:47:51,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:51,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:47:51,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:47:51,430 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-10-16 02:47:53,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:53,151 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2021-10-16 02:47:53,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:47:53,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 9 [2021-10-16 02:47:53,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:53,170 INFO L225 Difference]: With dead ends: 46 [2021-10-16 02:47:53,170 INFO L226 Difference]: Without dead ends: 42 [2021-10-16 02:47:53,171 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 895.2ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:47:53,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-16 02:47:53,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2021-10-16 02:47:53,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.1875) internal successors, (38), 35 states have internal predecessors, (38), 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) [2021-10-16 02:47:53,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2021-10-16 02:47:53,184 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 9 [2021-10-16 02:47:53,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:53,185 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2021-10-16 02:47:53,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-10-16 02:47:53,185 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2021-10-16 02:47:53,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:47:53,186 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:53,186 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:53,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:53,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:53,406 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:47:53,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:53,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-16 02:47:53,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:53,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143436596] [2021-10-16 02:47:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:53,409 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:53,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:53,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:53,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:47:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:53,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:47:53,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:53,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:53,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:55,703 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:55,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143436596] [2021-10-16 02:47:55,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143436596] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:55,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:55,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:47:55,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854765774] [2021-10-16 02:47:55,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:47:55,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:55,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:47:55,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:47:55,707 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:48:03,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:48:03,725 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2021-10-16 02:48:03,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 02:48:03,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-16 02:48:03,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:48:03,727 INFO L225 Difference]: With dead ends: 60 [2021-10-16 02:48:03,728 INFO L226 Difference]: Without dead ends: 48 [2021-10-16 02:48:03,729 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2881.8ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:48:03,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-16 02:48:03,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2021-10-16 02:48:03,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 42 states have internal predecessors, (45), 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) [2021-10-16 02:48:03,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-10-16 02:48:03,742 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 11 [2021-10-16 02:48:03,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:48:03,743 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-10-16 02:48:03,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:48:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-10-16 02:48:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:48:03,744 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:48:03,745 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:48:03,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:48:03,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:48:03,961 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:48:03,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:48:03,962 INFO L82 PathProgramCache]: Analyzing trace with hash -583489763, now seen corresponding path program 1 times [2021-10-16 02:48:03,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:48:03,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763274310] [2021-10-16 02:48:03,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:03,963 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:48:03,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:48:03,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:48:03,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:48:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:04,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:48:04,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:48:04,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:48:09,441 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:48:09,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763274310] [2021-10-16 02:48:09,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763274310] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:48:09,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1698030095] [2021-10-16 02:48:09,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:09,443 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:48:09,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:48:09,464 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:48:09,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-16 02:48:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:09,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:48:09,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:48:10,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:48:12,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1698030095] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:48:12,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398614236] [2021-10-16 02:48:12,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:12,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:48:12,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:48:12,342 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:48:12,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-16 02:48:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:12,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 02:48:12,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:13,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:48:13,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:15,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:48:15,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398614236] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:48:15,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:48:15,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 5] total 9 [2021-10-16 02:48:15,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969786156] [2021-10-16 02:48:15,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 02:48:15,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:48:15,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 02:48:15,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:48:15,271 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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) [2021-10-16 02:48:47,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:48:47,933 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2021-10-16 02:48:47,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-16 02:48:47,954 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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 16 [2021-10-16 02:48:47,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:48:47,955 INFO L225 Difference]: With dead ends: 81 [2021-10-16 02:48:47,955 INFO L226 Difference]: Without dead ends: 73 [2021-10-16 02:48:47,958 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 11050.6ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-10-16 02:48:47,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-16 02:48:47,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 57. [2021-10-16 02:48:47,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.150943396226415) internal successors, (61), 56 states have internal predecessors, (61), 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) [2021-10-16 02:48:47,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-10-16 02:48:47,976 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 16 [2021-10-16 02:48:47,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:48:47,976 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-10-16 02:48:47,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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) [2021-10-16 02:48:47,977 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-10-16 02:48:47,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 02:48:47,978 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:48:47,978 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-16 02:48:47,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-16 02:48:48,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:48:48,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-16 02:48:48,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:48:48,598 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:48:48,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:48:48,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1115495499, now seen corresponding path program 1 times [2021-10-16 02:48:48,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:48:48,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294790071] [2021-10-16 02:48:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:48,599 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:48:48,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:48:48,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:48:48,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 02:48:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:49,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:48:49,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:49,589 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:48:49,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:57,998 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-16 02:48:57,999 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:48:57,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294790071] [2021-10-16 02:48:57,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294790071] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:48:57,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1233091209] [2021-10-16 02:48:57,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:58,000 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:48:58,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:48:58,013 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:48:58,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-16 02:48:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:58,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:48:58,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:59,010 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:48:59,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-16 02:49:06,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1233091209] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:49:06,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24295434] [2021-10-16 02:49:06,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:06,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:06,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:49:06,430 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:49:06,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-16 02:49:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:06,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-16 02:49:06,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:08,217 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:08,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:26,220 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse3 (bvmul .cse1 .cse1)) (.cse0 ((_ sign_extend 32) (_ bv2 32)))) (or (= (bvadd ((_ sign_extend 32) (_ bv0 32)) (bvmul c_ULTIMATE.start_main_~s~0 .cse0) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0 .cse1)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~s~0 .cse1 .cse1)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0))) (bvadd (bvmul c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~s~0) (bvneg (bvmul ((_ sign_extend 32) (_ bv4 32)) (let ((.cse2 (bvadd .cse1 c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul (bvmul .cse1 .cse2) (_ bv2 64)) (bvmul .cse2 .cse2) .cse3)))) (bvmul (_ bv4 64) (bvmul .cse1 .cse1 .cse0)) (bvmul (_ bv32 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse1 .cse1 .cse1)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse1)) .cse1 (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse1 .cse0)) (bvmul (_ bv16 64) (bvmul .cse1 .cse1 .cse1 .cse1)) (bvmul (_ bv24 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse1 .cse1)) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0))) (not (= (bvadd (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse1)) (bvmul (_ bv4 64) .cse3) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvadd c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0 .cse0)))))) is different from true [2021-10-16 02:49:34,310 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse3 (bvmul .cse1 .cse1)) (.cse0 ((_ sign_extend 32) (_ bv2 32)))) (or (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (= (bvadd ((_ sign_extend 32) (_ bv0 32)) (bvmul c_ULTIMATE.start_main_~s~0 .cse0) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0 .cse1)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~s~0 .cse1 .cse1)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0))) (bvadd (bvmul c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~s~0) (bvneg (bvmul ((_ sign_extend 32) (_ bv4 32)) (let ((.cse2 (bvadd .cse1 c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul (bvmul .cse1 .cse2) (_ bv2 64)) (bvmul .cse2 .cse2) .cse3)))) (bvmul (_ bv4 64) (bvmul .cse1 .cse1 .cse0)) (bvmul (_ bv32 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse1 .cse1 .cse1)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse1)) .cse1 (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse1 .cse0)) (bvmul (_ bv16 64) (bvmul .cse1 .cse1 .cse1 .cse1)) (bvmul (_ bv24 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse1 .cse1)) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0))) (not (= (bvadd (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse1)) (bvmul (_ bv4 64) .cse3) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvadd c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0 .cse0)))))) is different from false [2021-10-16 02:49:49,281 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse5 (bvmul .cse2 .cse2)) (.cse3 ((_ sign_extend 32) (_ bv4 32))) (.cse1 ((_ sign_extend 32) (_ bv2 32))) (.cse0 ((_ sign_extend 32) (_ bv0 32)))) (or (= (bvadd .cse0 (bvmul c_ULTIMATE.start_main_~s~0 .cse1) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0 .cse2)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~s~0 .cse2 .cse2)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0))) (bvadd (bvmul c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~s~0) (bvneg (bvmul .cse3 (let ((.cse4 (bvadd .cse2 c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul (bvmul .cse2 .cse4) (_ bv2 64)) (bvmul .cse4 .cse4) .cse5)))) (bvmul (_ bv4 64) (bvmul .cse2 .cse2 .cse1)) (bvmul (_ bv32 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse2 .cse2 .cse2)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse2)) .cse2 (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse2 .cse1)) (bvmul (_ bv16 64) (bvmul .cse2 .cse2 .cse2 .cse2)) (bvmul (_ bv24 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse2 .cse2)) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse1) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0))) (not (= (bvadd (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse2)) (bvmul (_ bv4 64) .cse5) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvadd c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0 .cse1))) (not (= (bvadd .cse2 (bvneg (bvmul .cse3 c_ULTIMATE.start_main_~s~0)) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~t~0) (bvmul c_ULTIMATE.start_main_~t~0 .cse1)) .cse0))))) is different from true [2021-10-16 02:50:46,546 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ sign_extend 32) (_ bv2 32))) (.cse0 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse4 (bvmul .cse0 .cse0)) (.cse7 ((_ sign_extend 32) (_ bv0 32))) (.cse6 (bvmul c_ULTIMATE.start_main_~t~0 .cse1)) (.cse5 (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~t~0)) (.cse2 ((_ sign_extend 32) (_ bv4 32)))) (or (= (bvadd (bvmul c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~s~0) (bvmul (_ bv54 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0 .cse0)) (bvmul c_ULTIMATE.start_main_~s~0 .cse1) (bvneg (bvmul .cse2 (let ((.cse3 (bvadd (bvmul .cse0 (_ bv2 64)) c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul .cse3 .cse3) (bvmul (bvmul .cse0 .cse3) (_ bv2 64)) .cse4)))) (bvmul (_ bv12 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0)) .cse0 (bvmul (_ bv108 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0 .cse0 .cse0)) (bvmul (_ bv81 64) (bvmul .cse0 .cse0 .cse0 .cse0)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0)) .cse5 (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0) .cse6) (bvadd (bvmul (_ bv12 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0 .cse0)) .cse7 (bvmul (_ bv18 64) (bvmul c_ULTIMATE.start_main_~t~0 .cse0 .cse0)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv6 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0 .cse1)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0)) (bvmul (_ bv9 64) (bvmul .cse0 .cse0 .cse1)) (bvmul (_ bv18 64) (bvmul c_ULTIMATE.start_main_~s~0 .cse0 .cse0)) (bvmul (_ bv12 64) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~a~0 .cse0)) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse1))) (not (= (bvadd (bvmul (_ bv6 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0)) (bvmul (_ bv9 64) .cse4) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvadd (bvmul (_ bv2 64) c_ULTIMATE.start_main_~t~0) c_ULTIMATE.start_main_~s~0 (bvmul (_ bv3 64) .cse1)))) (not (= .cse7 (bvadd .cse0 (bvmul (_ bv3 64) .cse6) .cse5 (bvmul (_ bv2 64) (bvmul .cse1 .cse1)) (bvneg (bvmul .cse2 (bvadd c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0 .cse1))))))))) is different from true [2021-10-16 02:51:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 19 not checked. [2021-10-16 02:51:59,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24295434] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:51:59,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:51:59,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 6, 4, 10, 10] total 20 [2021-10-16 02:51:59,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757189075] [2021-10-16 02:51:59,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 02:51:59,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:51:59,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 02:51:59,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=178, Unknown=4, NotChecked=124, Total=380 [2021-10-16 02:51:59,768 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 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) [2021-10-16 02:52:25,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:52:25,938 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2021-10-16 02:52:25,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 02:52:25,950 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 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 25 [2021-10-16 02:52:25,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:52:25,951 INFO L225 Difference]: With dead ends: 63 [2021-10-16 02:52:25,951 INFO L226 Difference]: Without dead ends: 47 [2021-10-16 02:52:25,952 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 121 SyntacticMatches, 8 SemanticMatches, 25 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 44196.0ms TimeCoverageRelationStatistics Valid=149, Invalid=369, Unknown=4, NotChecked=180, Total=702 [2021-10-16 02:52:25,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-16 02:52:25,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-16 02:52:25,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 46 states have internal predecessors, (47), 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) [2021-10-16 02:52:25,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-10-16 02:52:25,964 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 25 [2021-10-16 02:52:25,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:52:25,964 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-10-16 02:52:25,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 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) [2021-10-16 02:52:25,965 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-10-16 02:52:25,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-16 02:52:25,966 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:52:25,967 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-10-16 02:52:26,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-16 02:52:26,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-16 02:52:26,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:52:26,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:52:26,571 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:52:26,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:52:26,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1602839570, now seen corresponding path program 2 times [2021-10-16 02:52:26,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:52:26,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931846086] [2021-10-16 02:52:26,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:52:26,572 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:52:26,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:52:26,574 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:52:26,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 02:52:27,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:52:27,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:52:27,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 02:52:27,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:52:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:52:29,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:52:30,577 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:52:30,578 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:52:30,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931846086] [2021-10-16 02:52:30,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931846086] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:52:30,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [636225276] [2021-10-16 02:52:30,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:52:30,579 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:52:30,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:52:30,585 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:52:30,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-16 02:52:31,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:52:31,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:52:31,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-16 02:52:31,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:52:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:52:33,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:52:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:52:54,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [636225276] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:52:54,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937002874] [2021-10-16 02:52:54,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:52:54,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:52:54,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:52:54,733 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:52:54,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-16 02:52:55,287 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:52:55,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:52:55,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-16 02:52:55,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:53:00,353 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:53:00,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:01,640 WARN L207 SmtUtils]: Spent 5.08 s on a formula simplification that was a NOOP. DAG size: 38 [2021-10-16 02:56:24,766 WARN L207 SmtUtils]: Spent 5.38 s on a formula simplification that was a NOOP. DAG size: 57 [2021-10-16 02:57:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:57:33,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937002874] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:57:33,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:57:33,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 14, 16] total 46 [2021-10-16 02:57:33,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763764641] [2021-10-16 02:57:33,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-16 02:57:33,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:57:33,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-16 02:57:33,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=1731, Unknown=6, NotChecked=0, Total=2070 [2021-10-16 02:57:33,515 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 46 states, 46 states have (on average 4.173913043478261) internal successors, (192), 46 states have internal predecessors, (192), 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) [2021-10-16 02:57:50,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:57:50,874 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-10-16 02:57:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 02:57:50,875 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 4.173913043478261) internal successors, (192), 46 states have internal predecessors, (192), 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 37 [2021-10-16 02:57:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:57:50,876 INFO L225 Difference]: With dead ends: 47 [2021-10-16 02:57:50,876 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:57:50,878 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 812 ImplicationChecksByTransitivity, 204164.7ms TimeCoverageRelationStatistics Valid=463, Invalid=2183, Unknown=6, NotChecked=0, Total=2652 [2021-10-16 02:57:50,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:57:50,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:57:50,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:57:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:57:50,879 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2021-10-16 02:57:50,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:57:50,879 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:57:50,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.173913043478261) internal successors, (192), 46 states have internal predecessors, (192), 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) [2021-10-16 02:57:50,880 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:57:50,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:57:50,883 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:50,884 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:50,884 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:50,884 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:50,884 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:50,884 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:50,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-16 02:57:51,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:57:51,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-16 02:57:51,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:57:51,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:57:51,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:51,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:51,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:51,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:51,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:51,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:51,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:51,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:58:21,982 WARN L207 SmtUtils]: Spent 19.58 s on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2021-10-16 02:58:28,602 WARN L207 SmtUtils]: Spent 6.62 s on a formula simplification. DAG size of input: 67 DAG size of output: 25 [2021-10-16 02:58:32,261 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:32,261 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:32,261 INFO L860 garLoopResultBuilder]: At program point L48(lines 20 49) the Hoare annotation is: true [2021-10-16 02:58:32,261 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:58:32,262 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:32,262 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:58:32,262 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:58:32,262 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:32,262 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:32,262 INFO L853 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (let ((.cse9 ((_ sign_extend 32) (_ bv2 32))) (.cse2 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse3 ((_ sign_extend 32) (_ bv0 32))) (.cse8 (bvmul (_ bv2 64) .cse2)) (.cse7 (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse2)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse2 .cse2)))) (.cse4 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse5 (bvsle ULTIMATE.start_main_~n~0 (_ bv10 32))) (.cse6 (= ULTIMATE.start_main_~t~0 (bvadd .cse2 (bvmul ULTIMATE.start_main_~a~0 .cse9))))) (or (and .cse0 .cse1 (= .cse2 ULTIMATE.start_main_~s~0) (= .cse3 ULTIMATE.start_main_~a~0) .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 .cse4 .cse5 (= ULTIMATE.start_main_~a~0 (bvadd .cse3 (bvmul (_ bv3 64) .cse2))) .cse6) (and .cse0 .cse1 .cse4 .cse5 (= (bvadd .cse8 .cse9) ULTIMATE.start_main_~s~0) (= ULTIMATE.start_main_~a~0 (bvadd .cse3 .cse2)) .cse6) (and .cse0 .cse1 (= (bvadd .cse3 .cse8) ULTIMATE.start_main_~a~0) .cse7 .cse4 .cse5 .cse6)))) [2021-10-16 02:58:32,263 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:32,263 INFO L857 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-10-16 02:58:32,263 INFO L853 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: (let ((.cse9 ((_ sign_extend 32) (_ bv2 32))) (.cse10 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse4 (bvmul (_ bv2 64) .cse10)) (.cse5 (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse10)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse10 .cse10)))) (.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (.cse3 ((_ sign_extend 32) (_ bv0 32))) (.cse6 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse7 (bvsle ULTIMATE.start_main_~n~0 (_ bv10 32))) (.cse8 (= ULTIMATE.start_main_~t~0 (bvadd .cse10 (bvmul ULTIMATE.start_main_~a~0 .cse9))))) (or (and .cse0 .cse1 .cse2 (= (bvadd .cse3 .cse4) ULTIMATE.start_main_~a~0) .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse6 .cse7 (= (bvadd .cse4 .cse9) ULTIMATE.start_main_~s~0) (= ULTIMATE.start_main_~a~0 (bvadd .cse3 .cse10)) .cse8) (and .cse0 .cse1 .cse2 .cse5 .cse6 .cse7 (= ULTIMATE.start_main_~a~0 (bvadd .cse3 (bvmul (_ bv3 64) .cse10))) .cse8) (and .cse0 .cse1 .cse2 (= .cse10 ULTIMATE.start_main_~s~0) (= .cse3 ULTIMATE.start_main_~a~0) .cse6 .cse7 .cse8)))) [2021-10-16 02:58:32,263 INFO L857 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:32,264 INFO L853 garLoopResultBuilder]: At program point L12-8(lines 36 37) the Hoare annotation is: (let ((.cse9 ((_ sign_extend 32) (_ bv2 32))) (.cse10 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse4 (bvmul (_ bv2 64) .cse10)) (.cse5 (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse10)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse10 .cse10)))) (.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (.cse3 ((_ sign_extend 32) (_ bv0 32))) (.cse6 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse7 (bvsle ULTIMATE.start_main_~n~0 (_ bv10 32))) (.cse8 (= ULTIMATE.start_main_~t~0 (bvadd .cse10 (bvmul ULTIMATE.start_main_~a~0 .cse9))))) (or (and .cse0 .cse1 .cse2 (= (bvadd .cse3 .cse4) ULTIMATE.start_main_~a~0) .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse6 .cse7 (= (bvadd .cse4 .cse9) ULTIMATE.start_main_~s~0) (= ULTIMATE.start_main_~a~0 (bvadd .cse3 .cse10)) .cse8) (and .cse0 .cse1 .cse2 .cse5 .cse6 .cse7 (= ULTIMATE.start_main_~a~0 (bvadd .cse3 (bvmul (_ bv3 64) .cse10))) .cse8) (and .cse0 .cse1 .cse2 (= .cse10 ULTIMATE.start_main_~s~0) (= .cse3 ULTIMATE.start_main_~a~0) .cse6 .cse7 .cse8)))) [2021-10-16 02:58:32,264 INFO L857 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:32,264 INFO L853 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse1 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse2 ((_ sign_extend 32) (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~t~0 (bvadd .cse0 (bvmul ULTIMATE.start_main_~a~0 .cse1))))) (or (and (= (bvadd .cse0 (bvneg (bvmul ((_ sign_extend 32) (_ bv4 32)) ULTIMATE.start_main_~s~0)) (bvmul ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) (bvmul ULTIMATE.start_main_~t~0 .cse1)) .cse2) (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse0)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse0 .cse0))) (or (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) .cse3 .cse4) (and (= .cse0 ULTIMATE.start_main_~s~0) (= .cse2 ULTIMATE.start_main_~a~0) .cse3 .cse4)))) [2021-10-16 02:58:32,265 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:58:32,265 INFO L857 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:32,265 INFO L853 garLoopResultBuilder]: At program point L12-14(lines 11 17) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse1 ((_ sign_extend 32) (_ bv2 32)))) (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= (bvadd .cse0 (bvneg (bvmul ((_ sign_extend 32) (_ bv4 32)) ULTIMATE.start_main_~s~0)) (bvmul ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) (bvmul ULTIMATE.start_main_~t~0 .cse1)) ((_ sign_extend 32) (_ bv0 32))) (= ULTIMATE.start_main_~t~0 (bvadd .cse0 (bvmul ULTIMATE.start_main_~a~0 .cse1))))) [2021-10-16 02:58:32,265 INFO L857 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:32,266 INFO L860 garLoopResultBuilder]: At program point L12-17(lines 11 17) the Hoare annotation is: true [2021-10-16 02:58:32,266 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:32,266 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:32,266 INFO L857 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:32,266 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:32,267 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:32,267 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-10-16 02:58:32,267 INFO L857 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:32,267 INFO L857 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:32,267 INFO L853 garLoopResultBuilder]: At program point L30-2(lines 30 42) the Hoare annotation is: (let ((.cse5 ((_ sign_extend 32) (_ bv0 32))) (.cse6 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse10 (= .cse6 ULTIMATE.start_main_~t~0)) (.cse11 (= .cse5 ULTIMATE.start_main_~a~0)) (.cse9 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse8 (bvmul (_ bv2 64) .cse6)) (.cse2 (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse6)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse6 .cse6)))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (bvsle ULTIMATE.start_main_~n~0 (_ bv10 32))) (.cse7 (or (and .cse10 .cse11) (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~t~0 (bvadd .cse6 (bvmul ULTIMATE.start_main_~a~0 .cse9))))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~a~0 (bvadd .cse5 (bvmul (_ bv3 64) .cse6))) .cse7) (and .cse0 .cse1 .cse3 .cse4 .cse7 (= (bvadd .cse8 .cse9) ULTIMATE.start_main_~s~0) (= ULTIMATE.start_main_~a~0 (bvadd .cse5 .cse6))) (and .cse0 .cse10 .cse1 (= .cse6 ULTIMATE.start_main_~s~0) .cse11 .cse4) (and .cse0 .cse1 (= (bvadd .cse5 .cse8) ULTIMATE.start_main_~a~0) .cse2 .cse3 .cse4 .cse7))))) [2021-10-16 02:58:32,268 INFO L857 garLoopResultBuilder]: For program point L30-3(lines 30 42) no Hoare annotation was computed. [2021-10-16 02:58:32,268 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:32,273 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:58:32,300 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 02:58:32,304 INFO L168 Benchmark]: Toolchain (without parser) took 646505.34 ms. Allocated memory was 60.8 MB in the beginning and 90.2 MB in the end (delta: 29.4 MB). Free memory was 39.2 MB in the beginning and 21.3 MB in the end (delta: 17.9 MB). Peak memory consumption was 49.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:32,304 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 60.8 MB. Free memory is still 41.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:32,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.08 ms. Allocated memory is still 60.8 MB. Free memory was 39.0 MB in the beginning and 28.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:32,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.41 ms. Allocated memory is still 60.8 MB. Free memory was 28.5 MB in the beginning and 44.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:32,305 INFO L168 Benchmark]: Boogie Preprocessor took 81.42 ms. Allocated memory is still 60.8 MB. Free memory was 43.8 MB in the beginning and 42.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:32,306 INFO L168 Benchmark]: RCFGBuilder took 1042.22 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 32.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:32,307 INFO L168 Benchmark]: TraceAbstraction took 645046.79 ms. Allocated memory was 60.8 MB in the beginning and 90.2 MB in the end (delta: 29.4 MB). Free memory was 31.5 MB in the beginning and 21.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 44.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:32,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 60.8 MB. Free memory is still 41.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.08 ms. Allocated memory is still 60.8 MB. Free memory was 39.0 MB in the beginning and 28.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.41 ms. Allocated memory is still 60.8 MB. Free memory was 28.5 MB in the beginning and 44.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.42 ms. Allocated memory is still 60.8 MB. Free memory was 43.8 MB in the beginning and 42.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1042.22 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 32.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 645046.79 ms. Allocated memory was 60.8 MB in the beginning and 90.2 MB in the end (delta: 29.4 MB). Free memory was 31.5 MB in the beginning and 21.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 44.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 644952.4ms, OverallIterations: 7, TraceHistogramMax: 5, EmptinessCheckTime: 14.5ms, AutomataDifference: 86951.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 40759.8ms, InitialAbstractionConstructionTime: 10.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 102 SDtfs, 362 SDslu, 205 SDs, 0 SdLazy, 824 SolverSat, 340 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 49680.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 546 GetRequests, 423 SyntacticMatches, 9 SemanticMatches, 114 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1000 ImplicationChecksByTransitivity, 263394.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=5, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 87.0ms AutomataMinimizationTime, 7 MinimizatonAttempts, 48 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 34 NumberOfFragments, 840 HoareAnnotationTreeSize, 8 FomulaSimplifications, 406 FormulaSimplificationTreeSizeReduction, 271.0ms HoareSimplificationTime, 8 FomulaSimplificationsInter, 1882 FormulaSimplificationTreeSizeReductionInter, 40481.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 128.7ms SsaConstructionTime, 2739.2ms SatisfiabilityAnalysisTime, 509816.3ms InterpolantComputationTime, 268 NumberOfCodeBlocks, 268 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 510 ConstructedInterpolants, 0 QuantifiedInterpolants, 12086 SizeOfPredicates, 62 NumberOfNonLiveVariables, 734 ConjunctsInSsa, 143 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 98/486 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(3bv64, ~sign_extendFrom8To32(1bv32)))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((~bvsge32(n, 0bv32) && cond == 1bv32) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(3bv64, ~sign_extendFrom8To32(1bv32)))) && ((~sign_extendFrom8To32(1bv32) == t && ~sign_extendFrom8To32(0bv32) == a) || (!(cond == 0bv32) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && ((~sign_extendFrom8To32(1bv32) == t && ~sign_extendFrom8To32(0bv32) == a) || (!(cond == 0bv32) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))))) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32)))) || (((((~bvsge32(n, 0bv32) && ~sign_extendFrom8To32(1bv32) == t) && cond == 1bv32) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && ~bvsle64(n, 10bv32))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && ((~sign_extendFrom8To32(1bv32) == t && ~sign_extendFrom8To32(0bv32) == a) || (!(cond == 0bv32) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) || (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(3bv64, ~sign_extendFrom8To32(1bv32)))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:58:32,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6546218-b096-4ef9-b761-4cafacfc54a6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...