./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:49:43,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:49:43,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:49:43,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:49:43,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:49:43,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:49:43,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:49:43,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:49:43,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:49:43,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:49:43,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:49:43,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:49:43,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:49:43,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:49:43,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:49:43,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:49:43,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:49:43,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:49:43,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:49:43,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:49:43,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:49:43,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:49:43,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:49:43,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:49:43,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:49:43,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:49:43,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:49:43,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:49:43,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:49:43,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:49:43,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:49:43,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:49:43,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:49:43,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:49:43,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:49:43,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:49:43,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:49:43,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:49:43,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:49:43,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:49:43,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:49:43,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-12 23:49:43,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:49:43,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:49:43,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:49:43,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:49:43,313 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:49:43,314 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:49:43,314 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:49:43,314 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:49:43,314 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:49:43,315 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:49:43,316 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:49:43,316 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:49:43,316 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:49:43,316 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:49:43,317 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:49:43,317 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:49:43,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 23:49:43,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 23:49:43,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:49:43,319 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:49:43,319 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 23:49:43,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:49:43,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:49:43,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:49:43,320 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 23:49:43,320 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 23:49:43,321 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 23:49:43,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:49:43,321 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:49:43,321 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:49:43,321 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:49:43,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:49:43,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:49:43,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:49:43,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:49:43,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:49:43,323 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:49:43,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:49:43,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:49:43,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:49:43,324 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_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 [2021-11-12 23:49:43,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:49:43,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:49:43,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:49:43,729 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:49:43,733 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:49:43,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2021-11-12 23:49:43,825 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/data/6c7ae2748/bc209023b3064f779d105923087a7fd7/FLAGc3454281f [2021-11-12 23:49:44,611 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:49:44,611 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2021-11-12 23:49:44,629 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/data/6c7ae2748/bc209023b3064f779d105923087a7fd7/FLAGc3454281f [2021-11-12 23:49:44,769 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/data/6c7ae2748/bc209023b3064f779d105923087a7fd7 [2021-11-12 23:49:44,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:49:44,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:49:44,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:49:44,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:49:44,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:49:44,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:49:44" (1/1) ... [2021-11-12 23:49:44,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@439a4265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:44, skipping insertion in model container [2021-11-12 23:49:44,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:49:44" (1/1) ... [2021-11-12 23:49:44,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:49:44,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:49:45,347 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_cfda2cb3-6449-4825-85b9-da400bdc4c18/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2021-11-12 23:49:45,539 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_cfda2cb3-6449-4825-85b9-da400bdc4c18/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2021-11-12 23:49:45,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:49:45,574 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:49:45,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@306fd18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:45, skipping insertion in model container [2021-11-12 23:49:45,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:49:45,579 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:49:45,582 INFO L158 Benchmark]: Toolchain (without parser) took 806.54ms. Allocated memory is still 130.0MB. Free memory was 88.9MB in the beginning and 93.8MB in the end (delta: -4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:49:45,583 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 107.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:49:45,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 803.38ms. Allocated memory is still 130.0MB. Free memory was 88.6MB in the beginning and 93.8MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:49:45,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 107.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 803.38ms. Allocated memory is still 130.0MB. Free memory was 88.6MB in the beginning and 93.8MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:49:48,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:49:48,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:49:48,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:49:48,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:49:48,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:49:48,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:49:48,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:49:48,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:49:48,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:49:48,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:49:48,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:49:48,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:49:48,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:49:48,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:49:48,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:49:48,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:49:48,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:49:48,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:49:48,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:49:48,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:49:48,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:49:48,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:49:48,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:49:48,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:49:48,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:49:48,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:49:48,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:49:48,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:49:48,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:49:48,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:49:48,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:49:48,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:49:48,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:49:48,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:49:48,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:49:48,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:49:48,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:49:48,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:49:48,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:49:48,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:49:48,305 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-12 23:49:48,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:49:48,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:49:48,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:49:48,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:49:48,358 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:49:48,358 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:49:48,358 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:49:48,359 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:49:48,359 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:49:48,359 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:49:48,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 23:49:48,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 23:49:48,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:49:48,363 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:49:48,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 23:49:48,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:49:48,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:49:48,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:49:48,364 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 23:49:48,365 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 23:49:48,365 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 23:49:48,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:49:48,366 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:49:48,366 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:49:48,366 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:49:48,366 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:49:48,367 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:49:48,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:49:48,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:49:48,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:49:48,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:49:48,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:49:48,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:49:48,369 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:49:48,369 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:49:48,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:49:48,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:49:48,370 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_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 [2021-11-12 23:49:48,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:49:48,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:49:48,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:49:48,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:49:48,820 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:49:48,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2021-11-12 23:49:48,898 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/data/d0394cd2c/485fb7a31c8b4141a6082eba3bc57b22/FLAGd552ff83f [2021-11-12 23:49:49,653 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:49:49,655 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2021-11-12 23:49:49,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/data/d0394cd2c/485fb7a31c8b4141a6082eba3bc57b22/FLAGd552ff83f [2021-11-12 23:49:49,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/data/d0394cd2c/485fb7a31c8b4141a6082eba3bc57b22 [2021-11-12 23:49:49,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:49:49,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:49:49,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:49:49,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:49:49,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:49:49,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:49:49" (1/1) ... [2021-11-12 23:49:49,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25752a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:49, skipping insertion in model container [2021-11-12 23:49:49,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:49:49" (1/1) ... [2021-11-12 23:49:49,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:49:49,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:49:50,480 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_cfda2cb3-6449-4825-85b9-da400bdc4c18/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2021-11-12 23:49:50,603 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_cfda2cb3-6449-4825-85b9-da400bdc4c18/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2021-11-12 23:49:50,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:49:50,627 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:49:50,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:49:50,666 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_cfda2cb3-6449-4825-85b9-da400bdc4c18/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2021-11-12 23:49:50,747 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_cfda2cb3-6449-4825-85b9-da400bdc4c18/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2021-11-12 23:49:50,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:49:50,756 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:49:50,785 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_cfda2cb3-6449-4825-85b9-da400bdc4c18/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2021-11-12 23:49:50,843 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_cfda2cb3-6449-4825-85b9-da400bdc4c18/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2021-11-12 23:49:50,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:49:50,910 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:49:50,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50 WrapperNode [2021-11-12 23:49:50,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:49:50,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:49:50,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:49:50,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:49:50,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50" (1/1) ... [2021-11-12 23:49:50,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50" (1/1) ... [2021-11-12 23:49:51,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:49:51,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:49:51,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:49:51,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:49:51,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50" (1/1) ... [2021-11-12 23:49:51,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50" (1/1) ... [2021-11-12 23:49:51,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50" (1/1) ... [2021-11-12 23:49:51,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50" (1/1) ... [2021-11-12 23:49:51,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50" (1/1) ... [2021-11-12 23:49:51,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50" (1/1) ... [2021-11-12 23:49:51,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50" (1/1) ... [2021-11-12 23:49:51,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:49:51,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:49:51,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:49:51,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:49:51,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50" (1/1) ... [2021-11-12 23:49:51,191 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:49:51,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:49:51,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:49:51,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:49:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:49:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:49:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:49:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:49:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:49:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:49:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-12 23:49:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-12 23:49:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:49:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:49:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:49:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-12 23:49:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:49:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:49:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:49:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:49:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:49:51,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:49:51,583 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-12 23:49:57,407 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:49:57,408 INFO L299 CfgBuilder]: Removed 62 assume(true) statements. [2021-11-12 23:49:57,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:49:57 BoogieIcfgContainer [2021-11-12 23:49:57,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:49:57,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:49:57,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:49:57,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:49:57,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:49:49" (1/3) ... [2021-11-12 23:49:57,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd0b975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:49:57, skipping insertion in model container [2021-11-12 23:49:57,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:49:50" (2/3) ... [2021-11-12 23:49:57,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd0b975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:49:57, skipping insertion in model container [2021-11-12 23:49:57,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:49:57" (3/3) ... [2021-11-12 23:49:57,422 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test8-1.i [2021-11-12 23:49:57,429 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:49:57,429 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 536 error locations. [2021-11-12 23:49:57,500 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:49:57,513 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-11-12 23:49:57,513 INFO L340 AbstractCegarLoop]: Starting to check reachability of 536 error locations. [2021-11-12 23:49:57,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 1097 states, 540 states have (on average 2.240740740740741) internal successors, (1210), 1088 states have internal predecessors, (1210), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-12 23:49:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-12 23:49:57,573 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:57,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-12 23:49:57,575 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:49:57,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:57,581 INFO L85 PathProgramCache]: Analyzing trace with hash 132136, now seen corresponding path program 1 times [2021-11-12 23:49:57,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:57,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990195844] [2021-11-12 23:49:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:57,597 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:57,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:57,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:57,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:49:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:57,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:49:57,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:57,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 23:49:57,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:49:57,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:57,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:49:57,878 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:57,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990195844] [2021-11-12 23:49:57,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990195844] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:49:57,879 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:49:57,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:49:57,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921941533] [2021-11-12 23:49:57,883 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:57,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:49:57,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:57,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:49:57,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:49:57,983 INFO L87 Difference]: Start difference. First operand has 1097 states, 540 states have (on average 2.240740740740741) internal successors, (1210), 1088 states have internal predecessors, (1210), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-12 23:50:00,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:00,412 INFO L93 Difference]: Finished difference Result 1100 states and 1186 transitions. [2021-11-12 23:50:00,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:50:00,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2021-11-12 23:50:00,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:00,454 INFO L225 Difference]: With dead ends: 1100 [2021-11-12 23:50:00,454 INFO L226 Difference]: Without dead ends: 1098 [2021-11-12 23:50:00,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:50:00,463 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 971 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1915.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.58ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2298.57ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:00,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [975 Valid, 825 Invalid, 565 Unknown, 0 Unchecked, 22.58ms Time], IncrementalHoareTripleChecker [16 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 2298.57ms Time] [2021-11-12 23:50:00,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2021-11-12 23:50:00,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1086. [2021-11-12 23:50:00,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 543 states have (on average 2.0902394106813995) internal successors, (1135), 1076 states have internal predecessors, (1135), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-12 23:50:00,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1177 transitions. [2021-11-12 23:50:00,659 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1177 transitions. Word has length 3 [2021-11-12 23:50:00,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:00,660 INFO L470 AbstractCegarLoop]: Abstraction has 1086 states and 1177 transitions. [2021-11-12 23:50:00,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-12 23:50:00,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1177 transitions. [2021-11-12 23:50:00,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-12 23:50:00,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:00,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-12 23:50:00,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:00,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:00,876 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:00,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:00,882 INFO L85 PathProgramCache]: Analyzing trace with hash 132137, now seen corresponding path program 1 times [2021-11-12 23:50:00,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:00,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348429263] [2021-11-12 23:50:00,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:00,888 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:00,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:00,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:00,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:50:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:01,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:50:01,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:01,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 23:50:01,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:01,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:01,177 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:01,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348429263] [2021-11-12 23:50:01,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348429263] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:01,179 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:01,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 23:50:01,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982853280] [2021-11-12 23:50:01,181 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:01,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:50:01,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:01,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:50:01,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:50:01,184 INFO L87 Difference]: Start difference. First operand 1086 states and 1177 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:06,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:06,675 INFO L93 Difference]: Finished difference Result 1562 states and 1687 transitions. [2021-11-12 23:50:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:50:06,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-12 23:50:06,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:06,687 INFO L225 Difference]: With dead ends: 1562 [2021-11-12 23:50:06,687 INFO L226 Difference]: Without dead ends: 1562 [2021-11-12 23:50:06,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:50:06,690 INFO L933 BasicCegarLoop]: 832 mSDtfsCounter, 1136 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4705.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.96ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5384.47ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:06,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 1749 Invalid, 1101 Unknown, 0 Unchecked, 26.96ms Time], IncrementalHoareTripleChecker [18 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 5384.47ms Time] [2021-11-12 23:50:06,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2021-11-12 23:50:06,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1125. [2021-11-12 23:50:06,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 590 states have (on average 2.0694915254237287) internal successors, (1221), 1114 states have internal predecessors, (1221), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 23:50:06,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1265 transitions. [2021-11-12 23:50:06,735 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1265 transitions. Word has length 3 [2021-11-12 23:50:06,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:06,736 INFO L470 AbstractCegarLoop]: Abstraction has 1125 states and 1265 transitions. [2021-11-12 23:50:06,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:06,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1265 transitions. [2021-11-12 23:50:06,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 23:50:06,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:06,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:06,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 23:50:06,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:06,949 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:06,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:06,950 INFO L85 PathProgramCache]: Analyzing trace with hash -846217710, now seen corresponding path program 1 times [2021-11-12 23:50:06,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:06,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300118417] [2021-11-12 23:50:06,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:06,952 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:06,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:06,953 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:06,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:50:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:07,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:50:07,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:07,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 23:50:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:07,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:07,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:07,160 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:07,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300118417] [2021-11-12 23:50:07,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300118417] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:07,161 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:07,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:50:07,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894203469] [2021-11-12 23:50:07,162 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:07,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:50:07,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:07,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:50:07,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:50:07,164 INFO L87 Difference]: Start difference. First operand 1125 states and 1265 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:09,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:09,540 INFO L93 Difference]: Finished difference Result 1450 states and 1612 transitions. [2021-11-12 23:50:09,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:50:09,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-12 23:50:09,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:09,551 INFO L225 Difference]: With dead ends: 1450 [2021-11-12 23:50:09,551 INFO L226 Difference]: Without dead ends: 1450 [2021-11-12 23:50:09,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:50:09,553 INFO L933 BasicCegarLoop]: 995 mSDtfsCounter, 990 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1915.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.10ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2311.58ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:09,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [995 Valid, 1300 Invalid, 770 Unknown, 0 Unchecked, 14.10ms Time], IncrementalHoareTripleChecker [54 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 2311.58ms Time] [2021-11-12 23:50:09,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2021-11-12 23:50:09,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1078. [2021-11-12 23:50:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 590 states have (on average 1.9813559322033898) internal successors, (1169), 1067 states have internal predecessors, (1169), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 23:50:09,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1213 transitions. [2021-11-12 23:50:09,595 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1213 transitions. Word has length 8 [2021-11-12 23:50:09,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:09,595 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 1213 transitions. [2021-11-12 23:50:09,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:09,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1213 transitions. [2021-11-12 23:50:09,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 23:50:09,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:09,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:09,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:09,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:09,810 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:09,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:09,810 INFO L85 PathProgramCache]: Analyzing trace with hash -846217709, now seen corresponding path program 1 times [2021-11-12 23:50:09,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:09,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907908795] [2021-11-12 23:50:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:09,811 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:09,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:09,815 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:09,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:50:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:09,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:50:09,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:10,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 23:50:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:10,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:10,153 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:10,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907908795] [2021-11-12 23:50:10,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907908795] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:10,154 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:10,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 23:50:10,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115715096] [2021-11-12 23:50:10,154 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:10,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:50:10,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:10,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:50:10,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:50:10,156 INFO L87 Difference]: Start difference. First operand 1078 states and 1213 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:14,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:14,987 INFO L93 Difference]: Finished difference Result 1509 states and 1633 transitions. [2021-11-12 23:50:14,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:50:14,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-12 23:50:14,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:15,000 INFO L225 Difference]: With dead ends: 1509 [2021-11-12 23:50:15,000 INFO L226 Difference]: Without dead ends: 1509 [2021-11-12 23:50:15,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:50:15,002 INFO L933 BasicCegarLoop]: 1182 mSDtfsCounter, 1416 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4192.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.57ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4759.45ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:15,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1419 Valid, 1667 Invalid, 791 Unknown, 0 Unchecked, 18.57ms Time], IncrementalHoareTripleChecker [18 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 4759.45ms Time] [2021-11-12 23:50:15,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2021-11-12 23:50:15,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1276. [2021-11-12 23:50:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 797 states have (on average 1.9786700125470515) internal successors, (1577), 1264 states have internal predecessors, (1577), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:50:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1623 transitions. [2021-11-12 23:50:15,070 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1623 transitions. Word has length 8 [2021-11-12 23:50:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:15,078 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 1623 transitions. [2021-11-12 23:50:15,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:15,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1623 transitions. [2021-11-12 23:50:15,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 23:50:15,079 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:15,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:15,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:15,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:15,292 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr534ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:15,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:15,292 INFO L85 PathProgramCache]: Analyzing trace with hash -652228184, now seen corresponding path program 1 times [2021-11-12 23:50:15,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:15,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964550200] [2021-11-12 23:50:15,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:15,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:15,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:15,294 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:15,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:50:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:15,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:50:15,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:15,497 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:50:15,497 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:50:15,498 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:50:15,561 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-12 23:50:15,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-12 23:50:15,636 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-12 23:50:15,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-12 23:50:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:15,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:15,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:15,733 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:15,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964550200] [2021-11-12 23:50:15,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964550200] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:15,734 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:15,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:50:15,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813219414] [2021-11-12 23:50:15,734 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:15,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:50:15,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:15,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:50:15,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:50:15,736 INFO L87 Difference]: Start difference. First operand 1276 states and 1623 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:18,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:18,093 INFO L93 Difference]: Finished difference Result 1786 states and 2342 transitions. [2021-11-12 23:50:18,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:50:18,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-12 23:50:18,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:18,105 INFO L225 Difference]: With dead ends: 1786 [2021-11-12 23:50:18,105 INFO L226 Difference]: Without dead ends: 1786 [2021-11-12 23:50:18,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:50:18,107 INFO L933 BasicCegarLoop]: 1048 mSDtfsCounter, 356 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1967.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.32ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2267.84ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:18,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 3970 Invalid, 414 Unknown, 0 Unchecked, 12.32ms Time], IncrementalHoareTripleChecker [2 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 2267.84ms Time] [2021-11-12 23:50:18,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-11-12 23:50:18,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1276. [2021-11-12 23:50:18,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 797 states have (on average 1.9774153074027603) internal successors, (1576), 1264 states have internal predecessors, (1576), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:50:18,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1622 transitions. [2021-11-12 23:50:18,172 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1622 transitions. Word has length 10 [2021-11-12 23:50:18,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:18,173 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 1622 transitions. [2021-11-12 23:50:18,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:18,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1622 transitions. [2021-11-12 23:50:18,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 23:50:18,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:18,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:18,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:18,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:18,389 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:18,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:18,390 INFO L85 PathProgramCache]: Analyzing trace with hash -413650658, now seen corresponding path program 1 times [2021-11-12 23:50:18,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:18,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877821263] [2021-11-12 23:50:18,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:18,391 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:18,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:18,392 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:18,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:50:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:18,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:50:18,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:18,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:18,656 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:18,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877821263] [2021-11-12 23:50:18,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877821263] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:18,656 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:18,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:50:18,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322171932] [2021-11-12 23:50:18,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:18,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:50:18,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:18,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:50:18,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:50:18,658 INFO L87 Difference]: Start difference. First operand 1276 states and 1622 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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) [2021-11-12 23:50:18,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:18,691 INFO L93 Difference]: Finished difference Result 1243 states and 1588 transitions. [2021-11-12 23:50:18,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:50:18,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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 18 [2021-11-12 23:50:18,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:18,700 INFO L225 Difference]: With dead ends: 1243 [2021-11-12 23:50:18,700 INFO L226 Difference]: Without dead ends: 1243 [2021-11-12 23:50:18,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:50:18,701 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 966 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.40ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:18,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 1238 Invalid, 14 Unknown, 0 Unchecked, 2.31ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 17.40ms Time] [2021-11-12 23:50:18,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2021-11-12 23:50:18,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1234. [2021-11-12 23:50:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 779 states have (on average 1.9679075738125802) internal successors, (1533), 1222 states have internal predecessors, (1533), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:50:18,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1579 transitions. [2021-11-12 23:50:18,740 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1579 transitions. Word has length 18 [2021-11-12 23:50:18,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:18,741 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 1579 transitions. [2021-11-12 23:50:18,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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) [2021-11-12 23:50:18,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1579 transitions. [2021-11-12 23:50:18,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-12 23:50:18,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:18,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:18,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-12 23:50:18,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:18,956 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:18,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:18,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1913675577, now seen corresponding path program 1 times [2021-11-12 23:50:18,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:18,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566991183] [2021-11-12 23:50:18,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:18,958 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:18,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:18,959 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:19,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:50:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:19,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:50:19,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:19,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:19,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:19,264 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:19,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566991183] [2021-11-12 23:50:19,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566991183] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:19,264 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:19,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-12 23:50:19,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995447387] [2021-11-12 23:50:19,265 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:19,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:50:19,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:19,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:50:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:50:19,267 INFO L87 Difference]: Start difference. First operand 1234 states and 1579 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-11-12 23:50:19,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:19,385 INFO L93 Difference]: Finished difference Result 1222 states and 1560 transitions. [2021-11-12 23:50:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:50:19,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 20 [2021-11-12 23:50:19,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:19,394 INFO L225 Difference]: With dead ends: 1222 [2021-11-12 23:50:19,395 INFO L226 Difference]: Without dead ends: 1222 [2021-11-12 23:50:19,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:50:19,396 INFO L933 BasicCegarLoop]: 1009 mSDtfsCounter, 1864 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.09ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.49ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:19,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1869 Valid, 2103 Invalid, 81 Unknown, 0 Unchecked, 5.09ms Time], IncrementalHoareTripleChecker [47 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 88.49ms Time] [2021-11-12 23:50:19,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-11-12 23:50:19,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1212. [2021-11-12 23:50:19,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 771 states have (on average 1.9507133592736705) internal successors, (1504), 1200 states have internal predecessors, (1504), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:50:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1550 transitions. [2021-11-12 23:50:19,434 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1550 transitions. Word has length 20 [2021-11-12 23:50:19,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:19,434 INFO L470 AbstractCegarLoop]: Abstraction has 1212 states and 1550 transitions. [2021-11-12 23:50:19,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-11-12 23:50:19,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1550 transitions. [2021-11-12 23:50:19,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-12 23:50:19,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:19,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:19,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:19,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:19,651 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:19,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:19,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1224753126, now seen corresponding path program 1 times [2021-11-12 23:50:19,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:19,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973964752] [2021-11-12 23:50:19,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:19,653 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:19,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:19,653 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:19,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:50:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:19,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:50:19,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:19,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 23:50:19,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:19,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:20,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:20,099 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:20,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973964752] [2021-11-12 23:50:20,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973964752] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:20,099 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:20,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:50:20,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126712449] [2021-11-12 23:50:20,100 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:20,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:50:20,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:20,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:50:20,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:50:20,101 INFO L87 Difference]: Start difference. First operand 1212 states and 1550 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-12 23:50:22,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:22,361 INFO L93 Difference]: Finished difference Result 1802 states and 2373 transitions. [2021-11-12 23:50:22,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:50:22,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2021-11-12 23:50:22,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:22,371 INFO L225 Difference]: With dead ends: 1802 [2021-11-12 23:50:22,371 INFO L226 Difference]: Without dead ends: 1802 [2021-11-12 23:50:22,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:50:22,372 INFO L933 BasicCegarLoop]: 563 mSDtfsCounter, 2108 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1851.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.37ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2206.52ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:22,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2110 Valid, 999 Invalid, 786 Unknown, 0 Unchecked, 8.37ms Time], IncrementalHoareTripleChecker [23 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 2206.52ms Time] [2021-11-12 23:50:22,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2021-11-12 23:50:22,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1208. [2021-11-12 23:50:22,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 771 states have (on average 1.9455252918287937) internal successors, (1500), 1196 states have internal predecessors, (1500), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:50:22,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1546 transitions. [2021-11-12 23:50:22,412 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1546 transitions. Word has length 34 [2021-11-12 23:50:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:22,412 INFO L470 AbstractCegarLoop]: Abstraction has 1208 states and 1546 transitions. [2021-11-12 23:50:22,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-12 23:50:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1546 transitions. [2021-11-12 23:50:22,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-12 23:50:22,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:22,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:22,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-12 23:50:22,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:22,646 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:22,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:22,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1224753127, now seen corresponding path program 1 times [2021-11-12 23:50:22,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:22,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353137493] [2021-11-12 23:50:22,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:22,647 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:22,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:22,649 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:22,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:50:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:22,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:50:22,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:22,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 23:50:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:23,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:23,738 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:23,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353137493] [2021-11-12 23:50:23,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353137493] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:23,739 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:23,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:50:23,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780399376] [2021-11-12 23:50:23,739 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:23,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:50:23,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:23,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:50:23,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:50:23,741 INFO L87 Difference]: Start difference. First operand 1208 states and 1546 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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) [2021-11-12 23:50:32,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:32,516 INFO L93 Difference]: Finished difference Result 1449 states and 1564 transitions. [2021-11-12 23:50:32,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:50:32,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 34 [2021-11-12 23:50:32,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:32,532 INFO L225 Difference]: With dead ends: 1449 [2021-11-12 23:50:32,532 INFO L226 Difference]: Without dead ends: 1449 [2021-11-12 23:50:32,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:50:32,536 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 1263 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7701.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.01ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8610.52ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:32,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 2645 Invalid, 1988 Unknown, 0 Unchecked, 15.01ms Time], IncrementalHoareTripleChecker [14 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 8610.52ms Time] [2021-11-12 23:50:32,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2021-11-12 23:50:32,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1204. [2021-11-12 23:50:32,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 771 states have (on average 1.940337224383917) internal successors, (1496), 1192 states have internal predecessors, (1496), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:50:32,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1542 transitions. [2021-11-12 23:50:32,575 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1542 transitions. Word has length 34 [2021-11-12 23:50:32,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:32,578 INFO L470 AbstractCegarLoop]: Abstraction has 1204 states and 1542 transitions. [2021-11-12 23:50:32,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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) [2021-11-12 23:50:32,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1542 transitions. [2021-11-12 23:50:32,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-12 23:50:32,584 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:32,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:32,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:32,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:32,799 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:32,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:32,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1045534242, now seen corresponding path program 1 times [2021-11-12 23:50:32,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:32,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25844635] [2021-11-12 23:50:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:32,801 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:32,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:32,802 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:32,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 23:50:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:33,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:50:33,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:33,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:33,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:33,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:33,268 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:33,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25844635] [2021-11-12 23:50:33,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25844635] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:33,268 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:33,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:50:33,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527932706] [2021-11-12 23:50:33,269 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:33,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:50:33,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:33,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:50:33,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:50:33,270 INFO L87 Difference]: Start difference. First operand 1204 states and 1542 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-11-12 23:50:33,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:33,340 INFO L93 Difference]: Finished difference Result 1207 states and 1541 transitions. [2021-11-12 23:50:33,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:50:33,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2021-11-12 23:50:33,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:33,349 INFO L225 Difference]: With dead ends: 1207 [2021-11-12 23:50:33,349 INFO L226 Difference]: Without dead ends: 1207 [2021-11-12 23:50:33,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:50:33,350 INFO L933 BasicCegarLoop]: 1003 mSDtfsCounter, 913 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.38ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.67ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:33,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 2081 Invalid, 43 Unknown, 0 Unchecked, 3.38ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 44.67ms Time] [2021-11-12 23:50:33,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2021-11-12 23:50:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1198. [2021-11-12 23:50:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 765 states have (on average 1.942483660130719) internal successors, (1486), 1186 states have internal predecessors, (1486), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:50:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1532 transitions. [2021-11-12 23:50:33,380 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1532 transitions. Word has length 49 [2021-11-12 23:50:33,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:33,381 INFO L470 AbstractCegarLoop]: Abstraction has 1198 states and 1532 transitions. [2021-11-12 23:50:33,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-11-12 23:50:33,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1532 transitions. [2021-11-12 23:50:33,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-12 23:50:33,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:33,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:33,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:33,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:33,598 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:33,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:33,599 INFO L85 PathProgramCache]: Analyzing trace with hash -551406574, now seen corresponding path program 1 times [2021-11-12 23:50:33,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:33,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368339985] [2021-11-12 23:50:33,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:33,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:33,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:33,601 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:33,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:50:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:33,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:50:33,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:34,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:34,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:34,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:34,755 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:34,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368339985] [2021-11-12 23:50:34,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368339985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:34,755 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:34,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:50:34,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091989356] [2021-11-12 23:50:34,756 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:34,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:50:34,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:34,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:50:34,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:50:34,758 INFO L87 Difference]: Start difference. First operand 1198 states and 1532 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-12 23:50:35,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:35,063 INFO L93 Difference]: Finished difference Result 1738 states and 2267 transitions. [2021-11-12 23:50:35,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:50:35,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2021-11-12 23:50:35,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:35,075 INFO L225 Difference]: With dead ends: 1738 [2021-11-12 23:50:35,075 INFO L226 Difference]: Without dead ends: 1738 [2021-11-12 23:50:35,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:50:35,076 INFO L933 BasicCegarLoop]: 1212 mSDtfsCounter, 407 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 241.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.36ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 283.48ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:35,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 2072 Invalid, 110 Unknown, 0 Unchecked, 3.36ms Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 283.48ms Time] [2021-11-12 23:50:35,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2021-11-12 23:50:35,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1559. [2021-11-12 23:50:35,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1124 states have (on average 1.9252669039145907) internal successors, (2164), 1545 states have internal predecessors, (2164), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 23:50:35,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2214 transitions. [2021-11-12 23:50:35,119 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2214 transitions. Word has length 57 [2021-11-12 23:50:35,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:35,120 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 2214 transitions. [2021-11-12 23:50:35,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-12 23:50:35,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2214 transitions. [2021-11-12 23:50:35,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-12 23:50:35,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:35,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:35,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:35,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:35,336 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:35,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:35,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1189287633, now seen corresponding path program 1 times [2021-11-12 23:50:35,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:35,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046318987] [2021-11-12 23:50:35,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:35,338 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:35,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:35,339 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:35,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 23:50:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:35,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:50:35,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:35,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 23:50:35,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 23:50:36,620 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-12 23:50:36,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2021-11-12 23:50:36,642 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-12 23:50:36,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2021-11-12 23:50:36,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:36,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:42,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:42,761 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:42,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046318987] [2021-11-12 23:50:42,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046318987] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:42,762 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:42,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:50:42,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069858795] [2021-11-12 23:50:42,762 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:42,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:50:42,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:42,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:50:42,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-12 23:50:42,764 INFO L87 Difference]: Start difference. First operand 1559 states and 2214 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 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) [2021-11-12 23:50:49,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:49,816 INFO L93 Difference]: Finished difference Result 2164 states and 2912 transitions. [2021-11-12 23:50:49,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:50:49,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 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 60 [2021-11-12 23:50:49,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:49,831 INFO L225 Difference]: With dead ends: 2164 [2021-11-12 23:50:49,831 INFO L226 Difference]: Without dead ends: 2164 [2021-11-12 23:50:49,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-12 23:50:49,832 INFO L933 BasicCegarLoop]: 754 mSDtfsCounter, 1500 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5841.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.05ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1486 IncrementalHoareTripleChecker+Unchecked, 6914.60ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:49,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 2152 Invalid, 3013 Unknown, 0 Unchecked, 21.05ms Time], IncrementalHoareTripleChecker [43 Valid, 1484 Invalid, 0 Unknown, 1486 Unchecked, 6914.60ms Time] [2021-11-12 23:50:49,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2021-11-12 23:50:49,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 1171. [2021-11-12 23:50:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 772 states have (on average 1.8264248704663213) internal successors, (1410), 1159 states have internal predecessors, (1410), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:50:49,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1456 transitions. [2021-11-12 23:50:49,904 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1456 transitions. Word has length 60 [2021-11-12 23:50:49,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:49,905 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1456 transitions. [2021-11-12 23:50:49,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 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) [2021-11-12 23:50:49,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1456 transitions. [2021-11-12 23:50:49,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-12 23:50:49,907 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:49,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:49,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:50,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:50,121 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:50,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:50,122 INFO L85 PathProgramCache]: Analyzing trace with hash 444125234, now seen corresponding path program 1 times [2021-11-12 23:50:50,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:50,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691524791] [2021-11-12 23:50:50,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:50,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:50,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:50,124 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:50,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 23:50:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:50,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:50:50,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:50,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:50,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:50,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-12 23:50:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:51,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:51,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691524791] [2021-11-12 23:50:51,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691524791] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:51,188 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:51,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:50:51,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091590661] [2021-11-12 23:50:51,189 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:51,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:50:51,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:51,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:50:51,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:50:51,190 INFO L87 Difference]: Start difference. First operand 1171 states and 1456 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2021-11-12 23:50:53,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:53,543 INFO L93 Difference]: Finished difference Result 1169 states and 1454 transitions. [2021-11-12 23:50:53,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:50:53,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 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 62 [2021-11-12 23:50:53,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:53,553 INFO L225 Difference]: With dead ends: 1169 [2021-11-12 23:50:53,554 INFO L226 Difference]: Without dead ends: 1169 [2021-11-12 23:50:53,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:50:53,555 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1754 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1969.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.64ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2317.86ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:53,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1759 Valid, 710 Invalid, 461 Unknown, 0 Unchecked, 6.64ms Time], IncrementalHoareTripleChecker [20 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 2317.86ms Time] [2021-11-12 23:50:53,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2021-11-12 23:50:53,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1169. [2021-11-12 23:50:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 772 states have (on average 1.8238341968911918) internal successors, (1408), 1157 states have internal predecessors, (1408), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:50:53,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1454 transitions. [2021-11-12 23:50:53,587 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1454 transitions. Word has length 62 [2021-11-12 23:50:53,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:53,588 INFO L470 AbstractCegarLoop]: Abstraction has 1169 states and 1454 transitions. [2021-11-12 23:50:53,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2021-11-12 23:50:53,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1454 transitions. [2021-11-12 23:50:53,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-12 23:50:53,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:53,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:53,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:53,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:53,807 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:53,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:53,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1859054235, now seen corresponding path program 1 times [2021-11-12 23:50:53,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:53,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978248778] [2021-11-12 23:50:53,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:53,809 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:53,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:53,811 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:53,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 23:50:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:54,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:50:54,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:54,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 23:50:54,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-12 23:50:54,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-12 23:50:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:54,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:54,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:54,502 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:54,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978248778] [2021-11-12 23:50:54,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978248778] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:54,502 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:54,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:50:54,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582727320] [2021-11-12 23:50:54,503 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:54,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:50:54,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:54,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:50:54,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:50:54,504 INFO L87 Difference]: Start difference. First operand 1169 states and 1454 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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) [2021-11-12 23:50:58,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:58,318 INFO L93 Difference]: Finished difference Result 1168 states and 1453 transitions. [2021-11-12 23:50:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:50:58,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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 65 [2021-11-12 23:50:58,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:58,325 INFO L225 Difference]: With dead ends: 1168 [2021-11-12 23:50:58,325 INFO L226 Difference]: Without dead ends: 1168 [2021-11-12 23:50:58,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:50:58,326 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 4 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3190.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.61ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3734.75ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:58,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2552 Invalid, 1314 Unknown, 0 Unchecked, 10.61ms Time], IncrementalHoareTripleChecker [1 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 3734.75ms Time] [2021-11-12 23:50:58,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2021-11-12 23:50:58,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1168. [2021-11-12 23:50:58,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 772 states have (on average 1.822538860103627) internal successors, (1407), 1156 states have internal predecessors, (1407), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:50:58,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1453 transitions. [2021-11-12 23:50:58,358 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1453 transitions. Word has length 65 [2021-11-12 23:50:58,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:58,359 INFO L470 AbstractCegarLoop]: Abstraction has 1168 states and 1453 transitions. [2021-11-12 23:50:58,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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) [2021-11-12 23:50:58,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1453 transitions. [2021-11-12 23:50:58,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-12 23:50:58,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:58,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:58,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-12 23:50:58,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:58,578 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:50:58,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:58,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1859054234, now seen corresponding path program 1 times [2021-11-12 23:50:58,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:58,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648389820] [2021-11-12 23:50:58,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:58,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:58,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:58,581 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:58,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 23:50:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:58,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:50:58,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:59,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 23:50:59,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-12 23:50:59,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-12 23:50:59,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-12 23:50:59,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-12 23:50:59,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:59,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:59,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:59,629 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:59,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648389820] [2021-11-12 23:50:59,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648389820] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:59,629 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:59,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-12 23:50:59,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355628949] [2021-11-12 23:50:59,630 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:59,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:50:59,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:59,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:50:59,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:50:59,631 INFO L87 Difference]: Start difference. First operand 1168 states and 1453 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 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) [2021-11-12 23:51:07,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:07,934 INFO L93 Difference]: Finished difference Result 1167 states and 1452 transitions. [2021-11-12 23:51:07,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:51:07,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 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) Word has length 65 [2021-11-12 23:51:07,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:07,949 INFO L225 Difference]: With dead ends: 1167 [2021-11-12 23:51:07,949 INFO L226 Difference]: Without dead ends: 1167 [2021-11-12 23:51:07,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:51:07,956 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 4 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7374.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.78ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8190.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:07,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2583 Invalid, 1282 Unknown, 0 Unchecked, 10.78ms Time], IncrementalHoareTripleChecker [2 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 8190.64ms Time] [2021-11-12 23:51:07,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2021-11-12 23:51:07,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1167. [2021-11-12 23:51:07,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 771 states have (on average 1.8236057068741893) internal successors, (1406), 1155 states have internal predecessors, (1406), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:51:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1452 transitions. [2021-11-12 23:51:07,985 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1452 transitions. Word has length 65 [2021-11-12 23:51:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:51:07,986 INFO L470 AbstractCegarLoop]: Abstraction has 1167 states and 1452 transitions. [2021-11-12 23:51:07,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 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) [2021-11-12 23:51:07,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1452 transitions. [2021-11-12 23:51:07,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-12 23:51:07,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:07,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:08,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 23:51:08,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:51:08,205 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:51:08,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:08,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1441347596, now seen corresponding path program 1 times [2021-11-12 23:51:08,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:08,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179800065] [2021-11-12 23:51:08,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:08,206 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:08,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:08,208 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:08,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 23:51:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:08,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:51:08,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:08,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:08,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:08,830 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:08,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179800065] [2021-11-12 23:51:08,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179800065] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:51:08,830 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:51:08,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:51:08,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621774327] [2021-11-12 23:51:08,830 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:51:08,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:51:08,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:51:08,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:51:08,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:51:08,831 INFO L87 Difference]: Start difference. First operand 1167 states and 1452 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:51:08,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:08,921 INFO L93 Difference]: Finished difference Result 1177 states and 1465 transitions. [2021-11-12 23:51:08,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:51:08,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2021-11-12 23:51:08,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:08,931 INFO L225 Difference]: With dead ends: 1177 [2021-11-12 23:51:08,931 INFO L226 Difference]: Without dead ends: 1177 [2021-11-12 23:51:08,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:51:08,932 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 11 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.65ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.47ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:08,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 1930 Invalid, 32 Unknown, 0 Unchecked, 1.65ms Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 59.47ms Time] [2021-11-12 23:51:08,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2021-11-12 23:51:08,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1177. [2021-11-12 23:51:08,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 779 states have (on average 1.8202824133504494) internal successors, (1418), 1164 states have internal predecessors, (1418), 23 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (24), 9 states have call predecessors, (24), 23 states have call successors, (24) [2021-11-12 23:51:08,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1465 transitions. [2021-11-12 23:51:08,969 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1465 transitions. Word has length 73 [2021-11-12 23:51:08,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:51:08,969 INFO L470 AbstractCegarLoop]: Abstraction has 1177 states and 1465 transitions. [2021-11-12 23:51:08,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:51:08,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1465 transitions. [2021-11-12 23:51:08,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-12 23:51:08,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:08,971 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:08,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 23:51:09,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:51:09,187 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:51:09,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:09,187 INFO L85 PathProgramCache]: Analyzing trace with hash 954167724, now seen corresponding path program 1 times [2021-11-12 23:51:09,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:09,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536862616] [2021-11-12 23:51:09,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:09,188 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:09,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:09,195 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:09,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-12 23:51:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:09,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:51:09,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:09,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:09,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:09,907 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:09,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536862616] [2021-11-12 23:51:09,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536862616] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:51:09,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [719769901] [2021-11-12 23:51:09,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:09,907 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:51:09,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:51:09,909 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:51:09,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-12 23:51:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:10,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:51:10,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:10,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:10,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:10,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:10,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [719769901] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:51:10,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6444794] [2021-11-12 23:51:10,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:10,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:51:10,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:51:10,530 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:51:10,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-12 23:51:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:10,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:51:10,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:10,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:11,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:11,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6444794] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:51:11,278 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 23:51:11,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-12 23:51:11,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36162512] [2021-11-12 23:51:11,278 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 23:51:11,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:51:11,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:51:11,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:51:11,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:51:11,280 INFO L87 Difference]: Start difference. First operand 1177 states and 1465 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-12 23:51:11,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:11,826 INFO L93 Difference]: Finished difference Result 1191 states and 1482 transitions. [2021-11-12 23:51:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 23:51:11,827 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 75 [2021-11-12 23:51:11,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:11,835 INFO L225 Difference]: With dead ends: 1191 [2021-11-12 23:51:11,835 INFO L226 Difference]: Without dead ends: 1185 [2021-11-12 23:51:11,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:51:11,837 INFO L933 BasicCegarLoop]: 966 mSDtfsCounter, 27 mSDsluCounter, 7684 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 216.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 8650 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.37ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 246.42ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:11,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 8650 Invalid, 144 Unknown, 0 Unchecked, 6.37ms Time], IncrementalHoareTripleChecker [27 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 246.42ms Time] [2021-11-12 23:51:11,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2021-11-12 23:51:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1183. [2021-11-12 23:51:11,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 785 states have (on average 1.8152866242038217) internal successors, (1425), 1170 states have internal predecessors, (1425), 23 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (24), 9 states have call predecessors, (24), 23 states have call successors, (24) [2021-11-12 23:51:11,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1472 transitions. [2021-11-12 23:51:11,870 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1472 transitions. Word has length 75 [2021-11-12 23:51:11,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:51:11,871 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1472 transitions. [2021-11-12 23:51:11,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-12 23:51:11,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1472 transitions. [2021-11-12 23:51:11,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-12 23:51:11,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:11,872 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:11,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-11-12 23:51:12,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-11-12 23:51:12,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-12 23:51:12,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:51:12,498 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:51:12,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:12,498 INFO L85 PathProgramCache]: Analyzing trace with hash -617730836, now seen corresponding path program 2 times [2021-11-12 23:51:12,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:12,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18604290] [2021-11-12 23:51:12,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:51:12,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:12,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:12,502 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:12,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-12 23:51:12,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:51:12,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:51:12,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:51:12,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:13,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:13,728 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:13,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18604290] [2021-11-12 23:51:13,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18604290] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:51:13,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [956654165] [2021-11-12 23:51:13,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:51:13,729 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:51:13,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:51:13,730 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:51:13,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-11-12 23:51:14,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:51:14,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:51:14,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:51:14,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:14,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:51:15,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [956654165] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:51:15,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188617644] [2021-11-12 23:51:15,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:51:15,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:51:15,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:51:15,189 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:51:15,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfda2cb3-6449-4825-85b9-da400bdc4c18/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-12 23:52:15,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:52:15,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:52:15,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:52:15,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:16,201 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 23:52:16,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-12 23:52:16,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-12 23:54:15,575 WARN L227 SmtUtils]: Spent 33.29s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 23:54:15,576 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-12 23:54:15,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 79 [2021-11-12 23:54:16,225 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-12 23:54:16,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 38 [2021-11-12 23:54:16,343 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:54:16,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:54:18,610 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-12 23:54:18,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 61 [2021-11-12 23:59:54,178 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-12 23:59:54,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 111 [2021-11-12 23:59:57,312 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_120| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) is different from false [2021-11-13 00:00:18,196 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 00:00:18,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188617644] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 00:00:18,197 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 00:00:18,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-13 00:00:18,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348126643] [2021-11-13 00:00:18,198 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 00:00:18,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-13 00:00:18,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 00:00:18,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-13 00:00:18,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1536, Unknown=197, NotChecked=84, Total=1980 [2021-11-13 00:00:18,201 INFO L87 Difference]: Start difference. First operand 1183 states and 1472 transitions. Second operand has 45 states, 43 states have (on average 5.232558139534884) internal successors, (225), 43 states have internal predecessors, (225), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-13 00:00:22,769 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_120| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-13 00:01:41,438 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_118| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_118|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_83|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr237|)) is different from false [2021-11-13 00:02:20,321 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_116| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_84|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr237|)) is different from false [2021-11-13 00:02:22,341 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_114| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_85|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr237|)) is different from false [2021-11-13 00:02:24,357 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv4 32) |c_#Ultimate.C_memset_#t~loopctr237|) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_85|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_86|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|)))))) is different from false