./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.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_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/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_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/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_af143750-ccdf-4346-93a3-7839e570a0a8/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 8bc7ea9594894bce31579a47be3b0c06f18caebb .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/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_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/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_af143750-ccdf-4346-93a3-7839e570a0a8/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 8bc7ea9594894bce31579a47be3b0c06f18caebb .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:21:25,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:21:25,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:21:25,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:21:25,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:21:25,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:21:25,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:21:25,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:21:25,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:21:25,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:21:25,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:21:25,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:21:25,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:21:25,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:21:25,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:21:25,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:21:25,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:21:25,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:21:25,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:21:25,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:21:25,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:21:25,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:21:25,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:21:25,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:21:25,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:21:25,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:21:25,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:21:25,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:21:25,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:21:25,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:21:25,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:21:25,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:21:25,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:21:25,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:21:25,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:21:25,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:21:25,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:21:25,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:21:25,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:21:25,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:21:25,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:21:25,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:21:25,228 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:21:25,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:21:25,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:21:25,230 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:21:25,231 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:21:25,231 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:21:25,231 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:21:25,231 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:21:25,232 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:21:25,232 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:21:25,232 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:21:25,233 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:21:25,233 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:21:25,233 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:21:25,234 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:21:25,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:21:25,235 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:21:25,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:21:25,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:21:25,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:21:25,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:21:25,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:21:25,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:21:25,237 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:21:25,237 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:21:25,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:21:25,238 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:21:25,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:21:25,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:21:25,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:21:25,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:21:25,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:21:25,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:21:25,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:21:25,240 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:21:25,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:21:25,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:21:25,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:21:25,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:21:25,242 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_af143750-ccdf-4346-93a3-7839e570a0a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bc7ea9594894bce31579a47be3b0c06f18caebb [2021-10-16 03:21:25,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:21:25,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:21:25,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:21:25,614 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:21:25,615 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:21:25,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c [2021-10-16 03:21:25,726 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/data/4774b1053/d85ae395fac84436be6675723a8d2c9c/FLAG6a09cb50d [2021-10-16 03:21:26,388 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:21:26,389 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c [2021-10-16 03:21:26,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/data/4774b1053/d85ae395fac84436be6675723a8d2c9c/FLAG6a09cb50d [2021-10-16 03:21:26,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/data/4774b1053/d85ae395fac84436be6675723a8d2c9c [2021-10-16 03:21:26,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:21:26,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:21:26,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:21:26,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:21:26,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:21:26,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:21:26" (1/1) ... [2021-10-16 03:21:26,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d41e3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:26, skipping insertion in model container [2021-10-16 03:21:26,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:21:26" (1/1) ... [2021-10-16 03:21:26,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:21:26,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:21:27,012 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_af143750-ccdf-4346-93a3-7839e570a0a8/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c[525,538] [2021-10-16 03:21:27,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:21:27,079 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:21:27,095 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_af143750-ccdf-4346-93a3-7839e570a0a8/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c[525,538] [2021-10-16 03:21:27,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:21:27,132 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:21:27,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27 WrapperNode [2021-10-16 03:21:27,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:21:27,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:21:27,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:21:27,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:21:27,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27" (1/1) ... [2021-10-16 03:21:27,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27" (1/1) ... [2021-10-16 03:21:27,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:21:27,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:21:27,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:21:27,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:21:27,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27" (1/1) ... [2021-10-16 03:21:27,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27" (1/1) ... [2021-10-16 03:21:27,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27" (1/1) ... [2021-10-16 03:21:27,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27" (1/1) ... [2021-10-16 03:21:27,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27" (1/1) ... [2021-10-16 03:21:27,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27" (1/1) ... [2021-10-16 03:21:27,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27" (1/1) ... [2021-10-16 03:21:27,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:21:27,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:21:27,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:21:27,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:21:27,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27" (1/1) ... [2021-10-16 03:21:27,237 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:21:27,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:21:27,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:21:27,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:21:27,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:21:27,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:21:27,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:21:27,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:21:29,957 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:21:29,957 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2021-10-16 03:21:29,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:21:29 BoogieIcfgContainer [2021-10-16 03:21:29,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:21:29,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:21:29,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:21:29,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:21:29,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:21:26" (1/3) ... [2021-10-16 03:21:29,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f8f0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:21:29, skipping insertion in model container [2021-10-16 03:21:29,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:27" (2/3) ... [2021-10-16 03:21:29,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f8f0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:21:29, skipping insertion in model container [2021-10-16 03:21:29,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:21:29" (3/3) ... [2021-10-16 03:21:29,979 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_valuebound1.c [2021-10-16 03:21:29,987 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:21:29,987 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-16 03:21:30,078 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:21:30,091 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 03:21:30,092 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-16 03:21:30,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 32 states have (on average 1.6875) internal successors, (54), 41 states have internal predecessors, (54), 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 03:21:30,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 03:21:30,130 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:21:30,131 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 03:21:30,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-16 03:21:30,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:21:30,157 INFO L82 PathProgramCache]: Analyzing trace with hash 188707214, now seen corresponding path program 1 times [2021-10-16 03:21:30,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:21:30,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776283916] [2021-10-16 03:21:30,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:21:30,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:21:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:21:30,354 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 03:21:30,355 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:21:30,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776283916] [2021-10-16 03:21:30,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776283916] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:21:30,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:21:30,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:21:30,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554707171] [2021-10-16 03:21:30,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:21:30,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:21:30,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:21:30,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:21:30,386 INFO L87 Difference]: Start difference. First operand has 42 states, 32 states have (on average 1.6875) internal successors, (54), 41 states have internal predecessors, (54), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:21:30,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:21:30,408 INFO L93 Difference]: Finished difference Result 81 states and 103 transitions. [2021-10-16 03:21:30,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:21:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-16 03:21:30,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:21:30,420 INFO L225 Difference]: With dead ends: 81 [2021-10-16 03:21:30,421 INFO L226 Difference]: Without dead ends: 40 [2021-10-16 03:21:30,424 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:21:30,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-16 03:21:30,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-16 03:21:30,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 39 states have internal predecessors, (41), 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 03:21:30,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2021-10-16 03:21:30,476 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 5 [2021-10-16 03:21:30,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:21:30,476 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2021-10-16 03:21:30,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:21:30,477 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2021-10-16 03:21:30,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 03:21:30,478 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:21:30,478 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 03:21:30,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:21:30,479 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-16 03:21:30,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:21:30,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1426196737, now seen corresponding path program 1 times [2021-10-16 03:21:30,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:21:30,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855128799] [2021-10-16 03:21:30,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:21:30,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:21:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:21:30,977 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 03:21:30,978 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:21:30,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855128799] [2021-10-16 03:21:30,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855128799] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:21:30,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:21:30,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:21:30,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936788792] [2021-10-16 03:21:30,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:21:30,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:21:30,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:21:30,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:21:30,984 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 03:21:38,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:21:38,371 INFO L93 Difference]: Finished difference Result 115 states and 118 transitions. [2021-10-16 03:21:38,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:21:38,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 03:21:38,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:21:38,374 INFO L225 Difference]: With dead ends: 115 [2021-10-16 03:21:38,374 INFO L226 Difference]: Without dead ends: 78 [2021-10-16 03:21:38,376 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 115.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:21:38,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-16 03:21:38,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 55. [2021-10-16 03:21:38,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 54 states have internal predecessors, (62), 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 03:21:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2021-10-16 03:21:38,391 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 6 [2021-10-16 03:21:38,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:21:38,392 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2021-10-16 03:21:38,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 03:21:38,392 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2021-10-16 03:21:38,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 03:21:38,393 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:21:38,393 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:21:38,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:21:38,394 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-16 03:21:38,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:21:38,395 INFO L82 PathProgramCache]: Analyzing trace with hash 480653316, now seen corresponding path program 1 times [2021-10-16 03:21:38,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:21:38,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807912126] [2021-10-16 03:21:38,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:21:38,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:21:38,413 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 03:21:38,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157877676] [2021-10-16 03:21:38,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:21:38,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:21:38,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:21:38,417 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:21:38,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 03:21:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:21:38,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 03:21:38,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:21:38,709 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 03:21:38,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:21:41,469 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 03:21:41,470 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:21:41,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807912126] [2021-10-16 03:21:41,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 03:21:41,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157877676] [2021-10-16 03:21:41,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157877676] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:21:41,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:21:41,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:21:41,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670404147] [2021-10-16 03:21:41,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:21:41,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:21:41,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:21:41,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=11, Unknown=1, NotChecked=0, Total=20 [2021-10-16 03:21:41,475 INFO L87 Difference]: Start difference. First operand 55 states and 62 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 03:21:50,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:21:50,578 INFO L93 Difference]: Finished difference Result 93 states and 100 transitions. [2021-10-16 03:21:50,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:21:50,579 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 03:21:50,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:21:50,581 INFO L225 Difference]: With dead ends: 93 [2021-10-16 03:21:50,581 INFO L226 Difference]: Without dead ends: 77 [2021-10-16 03:21:50,582 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2410.1ms TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-10-16 03:21:50,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-16 03:21:50,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 70. [2021-10-16 03:21:50,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 69 states have internal predecessors, (76), 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 03:21:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2021-10-16 03:21:50,597 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 8 [2021-10-16 03:21:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:21:50,597 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2021-10-16 03:21:50,598 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 03:21:50,598 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2021-10-16 03:21:50,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 03:21:50,599 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:21:50,599 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-16 03:21:50,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-16 03:21:50,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:21:50,814 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-16 03:21:50,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:21:50,814 INFO L82 PathProgramCache]: Analyzing trace with hash 522498748, now seen corresponding path program 1 times [2021-10-16 03:21:50,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:21:50,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075709180] [2021-10-16 03:21:50,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:21:50,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:21:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:21:51,132 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 03:21:51,132 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:21:51,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075709180] [2021-10-16 03:21:51,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075709180] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 03:21:51,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174283598] [2021-10-16 03:21:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:21:51,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:21:51,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:21:51,141 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:21:51,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 03:21:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:21:51,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 03:21:51,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:21:51,485 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 03:21:51,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:21:51,657 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 03:21:51,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174283598] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:21:51,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [188672036] [2021-10-16 03:21:51,687 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-16 03:21:51,688 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 03:21:51,693 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 03:21:51,701 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 03:21:51,702 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 03:21:51,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:21:51,758 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:21:51,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:21:51,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 03:21:51,762 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:21:51,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:21:51,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 03:21:51,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-16 03:21:51,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:21:51,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:21:51,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:21:51,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 03:21:51,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:21:51,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:21:51,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:21:51,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:21:51,843 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 03:21:51,861 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-16 03:21:51,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:21:51,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 03:21:51,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:21:51,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 03:21:51,865 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 03:21:51,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:21:51,903 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:21:51,907 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.7 percent of original size [2021-10-16 03:21:51,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-10-16 03:21:51,911 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 03:21:51,911 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:298, output treesize:146 [2021-10-16 03:21:51,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 03:21:52,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:21:52,127 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_22| 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 03:21:52,131 INFO L168 Benchmark]: Toolchain (without parser) took 25400.65 ms. Allocated memory is still 132.1 MB. Free memory was 99.0 MB in the beginning and 88.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:52,131 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory is still 47.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:21:52,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.43 ms. Allocated memory is still 132.1 MB. Free memory was 99.0 MB in the beginning and 106.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:52,133 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.02 ms. Allocated memory is still 132.1 MB. Free memory was 106.8 MB in the beginning and 104.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:52,133 INFO L168 Benchmark]: Boogie Preprocessor took 34.84 ms. Allocated memory is still 132.1 MB. Free memory was 104.8 MB in the beginning and 103.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:21:52,134 INFO L168 Benchmark]: RCFGBuilder took 2735.92 ms. Allocated memory is still 132.1 MB. Free memory was 103.6 MB in the beginning and 86.3 MB in the end (delta: 17.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:52,135 INFO L168 Benchmark]: TraceAbstraction took 22165.45 ms. Allocated memory is still 132.1 MB. Free memory was 85.9 MB in the beginning and 88.3 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:21:52,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory is still 47.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 396.43 ms. Allocated memory is still 132.1 MB. Free memory was 99.0 MB in the beginning and 106.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.02 ms. Allocated memory is still 132.1 MB. Free memory was 106.8 MB in the beginning and 104.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.84 ms. Allocated memory is still 132.1 MB. Free memory was 104.8 MB in the beginning and 103.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2735.92 ms. Allocated memory is still 132.1 MB. Free memory was 103.6 MB in the beginning and 86.3 MB in the end (delta: 17.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22165.45 ms. Allocated memory is still 132.1 MB. Free memory was 85.9 MB in the beginning and 88.3 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_22| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_22|: 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 03:21:52,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/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 03:21:55,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:21:55,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:21:55,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:21:55,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:21:55,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:21:55,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:21:55,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:21:55,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:21:55,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:21:55,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:21:55,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:21:55,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:21:55,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:21:55,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:21:55,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:21:55,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:21:55,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:21:55,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:21:55,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:21:55,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:21:55,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:21:55,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:21:55,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:21:55,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:21:55,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:21:55,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:21:55,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:21:55,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:21:55,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:21:55,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:21:55,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:21:55,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:21:55,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:21:55,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:21:55,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:21:55,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:21:55,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:21:55,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:21:55,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:21:55,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:21:55,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 03:21:55,439 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:21:55,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:21:55,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:21:55,441 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:21:55,442 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:21:55,442 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:21:55,442 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:21:55,442 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:21:55,443 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:21:55,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:21:55,446 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:21:55,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:21:55,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:21:55,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:21:55,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:21:55,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:21:55,447 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:21:55,447 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:21:55,448 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:21:55,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:21:55,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:21:55,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:21:55,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:21:55,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:21:55,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:21:55,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:21:55,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:21:55,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:21:55,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:21:55,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:21:55,450 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:21:55,451 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:21:55,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:21:55,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:21:55,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:21:55,452 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_af143750-ccdf-4346-93a3-7839e570a0a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bc7ea9594894bce31579a47be3b0c06f18caebb [2021-10-16 03:21:55,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:21:55,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:21:55,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:21:55,971 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:21:55,972 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:21:55,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c [2021-10-16 03:21:56,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/data/dd78cc6d5/f56644ae007849b18da9240a597b63c2/FLAGb017b5596 [2021-10-16 03:21:56,762 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:21:56,767 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c [2021-10-16 03:21:56,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/data/dd78cc6d5/f56644ae007849b18da9240a597b63c2/FLAGb017b5596 [2021-10-16 03:21:57,082 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/data/dd78cc6d5/f56644ae007849b18da9240a597b63c2 [2021-10-16 03:21:57,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:21:57,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:21:57,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:21:57,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:21:57,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:21:57,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f48006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57, skipping insertion in model container [2021-10-16 03:21:57,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:21:57,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:21:57,313 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_af143750-ccdf-4346-93a3-7839e570a0a8/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c[525,538] [2021-10-16 03:21:57,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:21:57,370 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:21:57,398 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_af143750-ccdf-4346-93a3-7839e570a0a8/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c[525,538] [2021-10-16 03:21:57,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:21:57,502 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:21:57,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57 WrapperNode [2021-10-16 03:21:57,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:21:57,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:21:57,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:21:57,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:21:57,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:21:57,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:21:57,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:21:57,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:21:57,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:21:57,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:21:57,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:21:57,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:21:57,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57" (1/1) ... [2021-10-16 03:21:57,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:21:57,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:21:57,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:21:57,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:21:57,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 03:21:57,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:21:57,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:21:57,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:21:59,604 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:21:59,604 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2021-10-16 03:21:59,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:21:59 BoogieIcfgContainer [2021-10-16 03:21:59,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:21:59,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:21:59,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:21:59,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:21:59,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:21:57" (1/3) ... [2021-10-16 03:21:59,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7955ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:21:59, skipping insertion in model container [2021-10-16 03:21:59,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:57" (2/3) ... [2021-10-16 03:21:59,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7955ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:21:59, skipping insertion in model container [2021-10-16 03:21:59,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:21:59" (3/3) ... [2021-10-16 03:21:59,619 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_valuebound1.c [2021-10-16 03:21:59,626 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:21:59,626 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-16 03:21:59,707 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:21:59,720 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 03:21:59,721 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-16 03:21:59,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 40 states have (on average 1.675) internal successors, (67), 49 states have internal predecessors, (67), 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 03:21:59,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 03:21:59,763 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:21:59,799 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:21:59,799 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-16 03:21:59,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:21:59,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1235857098, now seen corresponding path program 1 times [2021-10-16 03:21:59,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:21:59,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844706024] [2021-10-16 03:21:59,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:21:59,828 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:21:59,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:21:59,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:21:59,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:21:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:21:59,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 03:21:59,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:22:00,042 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 03:22:00,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:22:00,126 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 03:22:00,127 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:22:00,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844706024] [2021-10-16 03:22:00,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844706024] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:22:00,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:22:00,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 03:22:00,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917710197] [2021-10-16 03:22:00,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:22:00,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:22:00,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:22:00,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:22:00,158 INFO L87 Difference]: Start difference. First operand has 50 states, 40 states have (on average 1.675) internal successors, (67), 49 states have internal predecessors, (67), 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 5.0) internal successors, (10), 2 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 03:22:00,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:22:00,183 INFO L93 Difference]: Finished difference Result 97 states and 130 transitions. [2021-10-16 03:22:00,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:22:00,185 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 10 [2021-10-16 03:22:00,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:22:00,196 INFO L225 Difference]: With dead ends: 97 [2021-10-16 03:22:00,196 INFO L226 Difference]: Without dead ends: 46 [2021-10-16 03:22:00,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 03:22:00,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-16 03:22:00,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-16 03:22:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 45 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 03:22:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2021-10-16 03:22:00,243 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 10 [2021-10-16 03:22:00,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:22:00,244 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2021-10-16 03:22:00,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 03:22:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2021-10-16 03:22:00,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 03:22:00,246 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:22:00,246 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:22:00,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:22:00,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:22:00,459 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-16 03:22:00,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:22:00,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1503620767, now seen corresponding path program 1 times [2021-10-16 03:22:00,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:22:00,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917910900] [2021-10-16 03:22:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:22:00,462 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:22:00,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:22:00,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:22:00,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 03:22:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:22:00,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 03:22:00,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:22:01,250 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 03:22:01,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:22:01,583 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 03:22:01,584 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:22:01,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917910900] [2021-10-16 03:22:01,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917910900] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:22:01,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:22:01,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 10 [2021-10-16 03:22:01,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699954240] [2021-10-16 03:22:01,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 03:22:01,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:22:01,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 03:22:01,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-16 03:22:01,590 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 03:22:05,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:22:05,828 INFO L93 Difference]: Finished difference Result 147 states and 160 transitions. [2021-10-16 03:22:05,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 03:22:05,839 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 03:22:05,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:22:05,842 INFO L225 Difference]: With dead ends: 147 [2021-10-16 03:22:05,842 INFO L226 Difference]: Without dead ends: 105 [2021-10-16 03:22:05,845 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1376.5ms TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-10-16 03:22:05,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-10-16 03:22:05,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 67. [2021-10-16 03:22:05,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 66 states have internal predecessors, (72), 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 03:22:05,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2021-10-16 03:22:05,880 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 11 [2021-10-16 03:22:05,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:22:05,881 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2021-10-16 03:22:05,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 03:22:05,881 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2021-10-16 03:22:05,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-16 03:22:05,882 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:22:05,883 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:22:05,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 03:22:06,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:22:06,103 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-16 03:22:06,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:22:06,104 INFO L82 PathProgramCache]: Analyzing trace with hash 2147482631, now seen corresponding path program 1 times [2021-10-16 03:22:06,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:22:06,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198161900] [2021-10-16 03:22:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:22:06,106 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:22:06,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:22:06,107 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:22:06,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 03:22:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:22:06,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 03:22:06,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:22:07,073 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 03:22:07,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:22:13,933 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 03:22:13,933 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:22:13,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198161900] [2021-10-16 03:22:13,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198161900] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:22:13,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:22:13,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 8 [2021-10-16 03:22:13,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745010375] [2021-10-16 03:22:13,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 03:22:13,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:22:13,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 03:22:13,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:22:13,937 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 03:22:44,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:22:44,971 INFO L93 Difference]: Finished difference Result 103 states and 107 transitions. [2021-10-16 03:22:44,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-16 03:22:44,988 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 15 [2021-10-16 03:22:44,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:22:44,989 INFO L225 Difference]: With dead ends: 103 [2021-10-16 03:22:44,989 INFO L226 Difference]: Without dead ends: 84 [2021-10-16 03:22:44,990 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 19346.2ms TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2021-10-16 03:22:44,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-16 03:22:45,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 56. [2021-10-16 03:22:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 55 states have internal predecessors, (60), 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 03:22:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-10-16 03:22:45,011 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 15 [2021-10-16 03:22:45,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:22:45,012 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-10-16 03:22:45,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 03:22:45,014 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-10-16 03:22:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-16 03:22:45,015 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:22:45,015 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:22:45,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-16 03:22:45,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:22:45,218 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-16 03:22:45,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:22:45,219 INFO L82 PathProgramCache]: Analyzing trace with hash -588730529, now seen corresponding path program 1 times [2021-10-16 03:22:45,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:22:45,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249324799] [2021-10-16 03:22:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:22:45,220 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:22:45,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:22:45,221 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:22:45,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 03:22:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:22:45,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 03:22:45,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:22:46,044 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 03:22:46,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:22:48,858 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 03:22:48,859 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:22:48,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249324799] [2021-10-16 03:22:48,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [249324799] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:22:48,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2116305624] [2021-10-16 03:22:48,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:22:48,861 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:22:48,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:22:48,862 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:22:48,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-16 03:22:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:22:49,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-16 03:22:49,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:22:49,597 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 03:22:49,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:22:53,338 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 03:22:53,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2116305624] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:22:53,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683174209] [2021-10-16 03:22:53,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:22:53,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:22:53,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:22:53,341 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:22:53,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-16 03:22:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:22:53,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-16 03:22:53,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:22:54,452 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 03:22:54,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:23:02,581 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 03:23:02,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683174209] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:23:02,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 03:23:02,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 7, 6, 9, 8] total 18 [2021-10-16 03:23:02,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353713171] [2021-10-16 03:23:02,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-16 03:23:02,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:23:02,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-16 03:23:02,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-10-16 03:23:02,585 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:23:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:23:19,066 INFO L93 Difference]: Finished difference Result 128 states and 144 transitions. [2021-10-16 03:23:19,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 03:23:19,067 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-16 03:23:19,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:23:19,068 INFO L225 Difference]: With dead ends: 128 [2021-10-16 03:23:19,068 INFO L226 Difference]: Without dead ends: 84 [2021-10-16 03:23:19,070 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 14801.1ms TimeCoverageRelationStatistics Valid=239, Invalid=573, Unknown=0, NotChecked=0, Total=812 [2021-10-16 03:23:19,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-16 03:23:19,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 77. [2021-10-16 03:23:19,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 76 states have internal predecessors, (81), 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 03:23:19,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 81 transitions. [2021-10-16 03:23:19,091 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 81 transitions. Word has length 15 [2021-10-16 03:23:19,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:23:19,091 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 81 transitions. [2021-10-16 03:23:19,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:23:19,092 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 81 transitions. [2021-10-16 03:23:19,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-16 03:23:19,093 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:23:19,094 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:23:19,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-16 03:23:19,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 03:23:19,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-10-16 03:23:19,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 03:23:19,721 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-16 03:23:19,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:23:19,722 INFO L82 PathProgramCache]: Analyzing trace with hash -957581047, now seen corresponding path program 1 times [2021-10-16 03:23:19,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:23:19,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903964466] [2021-10-16 03:23:19,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:23:19,723 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:23:19,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:23:19,731 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:23:19,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 03:23:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:23:20,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 03:23:20,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:23:21,736 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 03:23:21,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:23:23,213 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 03:23:23,214 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:23:23,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903964466] [2021-10-16 03:23:23,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903964466] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:23:23,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2104862918] [2021-10-16 03:23:23,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:23:23,215 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:23:23,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:23:23,219 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:23:23,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-16 03:23:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:23:24,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-16 03:23:24,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:23:25,409 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 03:23:25,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:23:28,422 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 03:23:28,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2104862918] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:23:28,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590517807] [2021-10-16 03:23:28,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:23:28,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:23:28,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:23:28,442 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:23:28,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-16 03:23:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:23:28,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-16 03:23:28,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:23:30,043 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 03:23:30,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:23:37,275 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 03:23:37,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590517807] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:23:37,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 03:23:37,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10, 8, 10, 9] total 28 [2021-10-16 03:23:37,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174260045] [2021-10-16 03:23:37,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-16 03:23:37,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:23:37,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-16 03:23:37,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2021-10-16 03:23:37,279 INFO L87 Difference]: Start difference. First operand 77 states and 81 transitions. Second operand has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 states have internal predecessors, (106), 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 03:23:43,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:23:43,401 INFO L93 Difference]: Finished difference Result 112 states and 117 transitions. [2021-10-16 03:23:43,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 03:23:43,402 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 states have internal predecessors, (106), 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 27 [2021-10-16 03:23:43,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:23:43,403 INFO L225 Difference]: With dead ends: 112 [2021-10-16 03:23:43,403 INFO L226 Difference]: Without dead ends: 59 [2021-10-16 03:23:43,404 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 8833.0ms TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2021-10-16 03:23:43,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-16 03:23:43,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-10-16 03:23:43,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 58 states have internal predecessors, (58), 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 03:23:43,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 58 transitions. [2021-10-16 03:23:43,418 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 58 transitions. Word has length 27 [2021-10-16 03:23:43,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:23:43,418 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 58 transitions. [2021-10-16 03:23:43,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 states have internal predecessors, (106), 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 03:23:43,419 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 58 transitions. [2021-10-16 03:23:43,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-16 03:23:43,420 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:23:43,421 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:23:43,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-16 03:23:43,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-16 03:23:43,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 03:23:44,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:23:44,029 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-16 03:23:44,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:23:44,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1112228340, now seen corresponding path program 1 times [2021-10-16 03:23:44,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:23:44,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006013433] [2021-10-16 03:23:44,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:23:44,031 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:23:44,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:23:44,032 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:23:44,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-16 03:23:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:23:44,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 03:23:44,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:23:46,330 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:23:46,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:23:59,542 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:23:59,542 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:23:59,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006013433] [2021-10-16 03:23:59,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006013433] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:23:59,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [139980855] [2021-10-16 03:23:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:23:59,543 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:23:59,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:23:59,545 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:23:59,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-16 03:24:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:24:00,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-16 03:24:00,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:24:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:24:01,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:24:22,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:24:22,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [139980855] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:24:22,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280191489] [2021-10-16 03:24:22,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:24:22,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:24:22,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:24:22,784 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:24:22,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-16 03:24:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:24:23,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-16 03:24:23,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:24:25,955 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:24:25,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:25:19,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:25:19,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280191489] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:25:19,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 03:25:19,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 9, 8, 12, 12] total 29 [2021-10-16 03:25:19,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323630050] [2021-10-16 03:25:19,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-16 03:25:19,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:25:19,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-16 03:25:19,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2021-10-16 03:25:19,437 INFO L87 Difference]: Start difference. First operand 59 states and 58 transitions. Second operand has 29 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 29 states have internal predecessors, (102), 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 03:25:28,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:25:28,674 INFO L93 Difference]: Finished difference Result 59 states and 58 transitions. [2021-10-16 03:25:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 03:25:28,675 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 29 states have internal predecessors, (102), 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 29 [2021-10-16 03:25:28,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:25:28,678 INFO L225 Difference]: With dead ends: 59 [2021-10-16 03:25:28,678 INFO L226 Difference]: Without dead ends: 53 [2021-10-16 03:25:28,680 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 60475.3ms TimeCoverageRelationStatistics Valid=350, Invalid=982, Unknown=0, NotChecked=0, Total=1332 [2021-10-16 03:25:28,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-16 03:25:28,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-16 03:25:28,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 52 states have internal predecessors, (52), 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 03:25:28,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 52 transitions. [2021-10-16 03:25:28,693 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 52 transitions. Word has length 29 [2021-10-16 03:25:28,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:25:28,694 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 52 transitions. [2021-10-16 03:25:28,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 29 states have internal predecessors, (102), 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 03:25:28,696 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 52 transitions. [2021-10-16 03:25:28,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-16 03:25:28,697 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:25:28,697 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:25:28,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-16 03:25:28,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-16 03:25:29,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-16 03:25:29,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:25:29,305 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-16 03:25:29,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:25:29,306 INFO L82 PathProgramCache]: Analyzing trace with hash 595578799, now seen corresponding path program 1 times [2021-10-16 03:25:29,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:25:29,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513009162] [2021-10-16 03:25:29,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:25:29,306 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:25:29,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:25:29,311 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:25:29,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-16 03:25:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:25:30,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 03:25:30,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:25:31,754 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:25:31,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:26:24,318 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:26:24,319 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:26:24,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513009162] [2021-10-16 03:26:24,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513009162] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:26:24,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [938084637] [2021-10-16 03:26:24,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:26:24,319 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:26:24,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:26:24,326 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:26:24,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-10-16 03:26:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:26:26,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-16 03:26:26,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:26:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:26:27,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:27:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:27:54,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [938084637] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:27:54,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508472556] [2021-10-16 03:27:54,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:27:54,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:27:54,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:27:54,826 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:27:54,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-16 03:27:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:27:55,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-16 03:27:55,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:28:00,792 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:28:00,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:31:06,844 WARN L207 SmtUtils]: Spent 5.39 s on a formula simplification that was a NOOP. DAG size: 73 [2021-10-16 03:31:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:31:11,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508472556] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:31:11,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 03:31:11,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 9, 8, 12, 12] total 29 [2021-10-16 03:31:11,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392871477] [2021-10-16 03:31:11,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-16 03:31:11,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:31:11,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-16 03:31:11,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=644, Unknown=1, NotChecked=0, Total=812 [2021-10-16 03:31:11,021 INFO L87 Difference]: Start difference. First operand 53 states and 52 transitions. Second operand has 29 states, 29 states have (on average 3.6551724137931036) internal successors, (106), 29 states have internal predecessors, (106), 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 03:31:35,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:31:35,973 INFO L93 Difference]: Finished difference Result 53 states and 52 transitions. [2021-10-16 03:31:35,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 03:31:35,974 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.6551724137931036) internal successors, (106), 29 states have internal predecessors, (106), 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 31 [2021-10-16 03:31:35,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:31:35,974 INFO L225 Difference]: With dead ends: 53 [2021-10-16 03:31:35,974 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 03:31:35,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 150 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 230347.4ms TimeCoverageRelationStatistics Valid=336, Invalid=995, Unknown=1, NotChecked=0, Total=1332 [2021-10-16 03:31:35,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 03:31:35,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 03:31:35,976 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 03:31:35,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 03:31:35,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-10-16 03:31:35,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:31:35,977 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 03:31:35,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.6551724137931036) internal successors, (106), 29 states have internal predecessors, (106), 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 03:31:35,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 03:31:35,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 03:31:35,981 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:31:35,982 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:31:35,982 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:31:35,982 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:31:35,983 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:31:35,983 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:31:35,983 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:31:35,983 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:31:35,984 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:31:36,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-16 03:31:36,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2021-10-16 03:31:36,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-16 03:31:36,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:31:36,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 03:31:36,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:31:36,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:31:36,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:31:36,731 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:31:36,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:31:36,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:31:36,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:31:36,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:31:36,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:31:36,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:31:36,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:31:51,160 WARN L207 SmtUtils]: Spent 5.19 s on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-10-16 03:31:57,849 WARN L207 SmtUtils]: Spent 5.51 s on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-10-16 03:32:04,109 WARN L207 SmtUtils]: Spent 5.09 s on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-10-16 03:32:10,050 WARN L207 SmtUtils]: Spent 5.94 s on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-10-16 03:32:15,640 WARN L207 SmtUtils]: Spent 5.59 s on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-10-16 03:32:15,643 INFO L860 garLoopResultBuilder]: At program point L60(lines 19 61) the Hoare annotation is: true [2021-10-16 03:32:15,643 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 03:32:15,643 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2021-10-16 03:32:15,643 INFO L857 garLoopResultBuilder]: For program point L52-2(lines 19 61) no Hoare annotation was computed. [2021-10-16 03:32:15,644 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 03:32:15,644 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 03:32:15,644 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 03:32:15,644 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-16 03:32:15,645 INFO L853 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 (bvneg ULTIMATE.start_main_~q~0))) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-16 03:32:15,645 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-16 03:32:15,645 INFO L853 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-16 03:32:15,646 INFO L857 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-16 03:32:15,646 INFO L853 garLoopResultBuilder]: At program point L12-8(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-16 03:32:15,646 INFO L857 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-16 03:32:15,647 INFO L853 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-16 03:32:15,647 INFO L857 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-10-16 03:32:15,648 INFO L853 garLoopResultBuilder]: At program point L12-14(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-16 03:32:15,648 INFO L857 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-10-16 03:32:15,648 INFO L853 garLoopResultBuilder]: At program point L12-17(lines 46 47) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-16 03:32:15,649 INFO L857 garLoopResultBuilder]: For program point L12-18(lines 12 15) no Hoare annotation was computed. [2021-10-16 03:32:15,649 INFO L853 garLoopResultBuilder]: At program point L12-20(lines 11 17) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32)))) (or (and .cse0 .cse1 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~p~0 (_ bv0 32)) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0) (bvule ULTIMATE.start_main_~n~0 (_ bv1 32))) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 (bvneg ULTIMATE.start_main_~h~0))) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))))) [2021-10-16 03:32:15,649 INFO L857 garLoopResultBuilder]: For program point L12-21(lines 12 15) no Hoare annotation was computed. [2021-10-16 03:32:15,649 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 03:32:15,650 INFO L853 garLoopResultBuilder]: At program point L12-23(lines 11 17) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse2 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) (or (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 (bvneg ULTIMATE.start_main_~h~0))) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse2 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 (_ bv0 32)) .cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0) (bvule ULTIMATE.start_main_~n~0 (_ bv1 32))))) [2021-10-16 03:32:15,650 INFO L857 garLoopResultBuilder]: For program point L12-24(lines 12 15) no Hoare annotation was computed. [2021-10-16 03:32:15,650 INFO L860 garLoopResultBuilder]: At program point L12-26(lines 11 17) the Hoare annotation is: true [2021-10-16 03:32:15,650 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-16 03:32:15,651 INFO L857 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-16 03:32:15,651 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-16 03:32:15,651 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-16 03:32:15,651 INFO L857 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-10-16 03:32:15,651 INFO L857 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-10-16 03:32:15,652 INFO L857 garLoopResultBuilder]: For program point L13-6(lines 13 14) no Hoare annotation was computed. [2021-10-16 03:32:15,652 INFO L857 garLoopResultBuilder]: For program point L13-7(lines 13 14) no Hoare annotation was computed. [2021-10-16 03:32:15,652 INFO L857 garLoopResultBuilder]: For program point L38-1(lines 38 56) no Hoare annotation was computed. [2021-10-16 03:32:15,652 INFO L857 garLoopResultBuilder]: For program point L13-8(lines 13 14) no Hoare annotation was computed. [2021-10-16 03:32:15,652 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 03:32:15,653 INFO L853 garLoopResultBuilder]: At program point L30-2(lines 30 35) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0)) (.cse3 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 (= ULTIMATE.start_main_~q~0 (_ bv1 32)) .cse1 .cse2 .cse3) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~h~0)) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse1 .cse2 .cse3 (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-16 03:32:15,653 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-10-16 03:32:15,653 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 03:32:15,654 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 03:32:15,654 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 03:32:15,654 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 03:32:15,654 INFO L857 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-10-16 03:32:15,655 INFO L857 garLoopResultBuilder]: For program point L8-1(lines 8 10) no Hoare annotation was computed. [2021-10-16 03:32:15,655 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 03:32:15,655 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 03:32:15,655 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-10-16 03:32:15,655 INFO L857 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed. [2021-10-16 03:32:15,656 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 03:32:15,661 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:32:15,667 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) 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 03:32:15,672 INFO L168 Benchmark]: Toolchain (without parser) took 618583.45 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 52.6 MB in the beginning and 30.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 47.9 MB. Max. memory is 16.1 GB. [2021-10-16 03:32:15,675 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:32:15,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.71 ms. Allocated memory is still 71.3 MB. Free memory was 52.4 MB in the beginning and 53.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:32:15,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.08 ms. Allocated memory is still 71.3 MB. Free memory was 53.9 MB in the beginning and 52.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:32:15,685 INFO L168 Benchmark]: Boogie Preprocessor took 56.50 ms. Allocated memory is still 71.3 MB. Free memory was 52.0 MB in the beginning and 50.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:32:15,685 INFO L168 Benchmark]: RCFGBuilder took 1989.77 ms. Allocated memory is still 71.3 MB. Free memory was 50.5 MB in the beginning and 37.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:32:15,686 INFO L168 Benchmark]: TraceAbstraction took 616060.83 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 36.9 MB in the beginning and 30.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:32:15,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 413.71 ms. Allocated memory is still 71.3 MB. Free memory was 52.4 MB in the beginning and 53.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.08 ms. Allocated memory is still 71.3 MB. Free memory was 53.9 MB in the beginning and 52.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.50 ms. Allocated memory is still 71.3 MB. Free memory was 52.0 MB in the beginning and 50.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1989.77 ms. Allocated memory is still 71.3 MB. Free memory was 50.5 MB in the beginning and 37.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 616060.83 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 36.9 MB in the beginning and 30.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 34.3 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 - 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, 50 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 615956.1ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 32.0ms, AutomataDifference: 92183.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 39049.1ms, InitialAbstractionConstructionTime: 16.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 191 SDtfs, 1402 SDslu, 638 SDs, 0 SdLazy, 1218 SolverSat, 882 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 52968.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 709 GetRequests, 539 SyntacticMatches, 7 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 335179.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=4, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 128.9ms AutomataMinimizationTime, 7 MinimizatonAttempts, 73 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 39 NumberOfFragments, 1053 HoareAnnotationTreeSize, 11 FomulaSimplifications, 1650 FormulaSimplificationTreeSizeReduction, 320.8ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 488 FormulaSimplificationTreeSizeReductionInter, 38719.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 132.0ms SsaConstructionTime, 5210.9ms SatisfiabilityAnalysisTime, 472206.4ms InterpolantComputationTime, 342 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 654 ConstructedInterpolants, 0 QuantifiedInterpolants, 20732 SizeOfPredicates, 130 NumberOfNonLiveVariables, 872 ConjunctsInSsa, 240 ConjunctsInUnsatCore, 30 InterpolantComputations, 6 PerfectInterpolantSequences, 0/120 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 9 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) 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 03:32:15,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af143750-ccdf-4346-93a3-7839e570a0a8/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...