./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/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_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:37:51,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:37:51,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:37:51,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:37:51,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:37:51,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:37:51,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:37:51,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:37:51,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:37:51,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:37:51,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:37:51,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:37:51,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:37:51,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:37:51,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:37:51,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:37:51,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:37:51,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:37:51,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:37:51,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:37:51,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:37:51,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:37:51,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:37:51,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:37:51,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:37:51,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:37:51,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:37:51,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:37:51,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:37:51,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:37:51,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:37:51,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:37:51,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:37:51,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:37:51,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:37:51,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:37:51,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:37:51,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:37:51,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:37:51,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:37:51,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:37:51,372 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:37:51,417 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:37:51,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:37:51,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:37:51,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:37:51,420 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:37:51,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:37:51,420 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:37:51,421 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:37:51,421 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:37:51,421 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:37:51,428 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:37:51,428 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:37:51,429 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:37:51,429 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:37:51,429 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:37:51,429 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:37:51,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:37:51,430 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:37:51,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:37:51,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:37:51,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:37:51,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:37:51,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:37:51,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:37:51,432 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:37:51,432 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:37:51,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:37:51,433 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:37:51,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:37:51,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:37:51,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:37:51,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:37:51,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:37:51,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:37:51,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:37:51,436 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:37:51,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:37:51,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:37:51,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:37:51,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:37:51,437 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_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 [2021-11-12 22:37:51,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:37:51,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:37:51,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:37:51,719 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:37:51,720 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:37:51,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2021-11-12 22:37:51,782 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/data/cb4ba7cd3/db14a08f7bab452fa2db30c00bcaec7e/FLAG6085576a6 [2021-11-12 22:37:52,225 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:37:52,226 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2021-11-12 22:37:52,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/data/cb4ba7cd3/db14a08f7bab452fa2db30c00bcaec7e/FLAG6085576a6 [2021-11-12 22:37:52,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/data/cb4ba7cd3/db14a08f7bab452fa2db30c00bcaec7e [2021-11-12 22:37:52,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:37:52,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:37:52,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:37:52,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:37:52,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:37:52,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:37:52" (1/1) ... [2021-11-12 22:37:52,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bdab91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:52, skipping insertion in model container [2021-11-12 22:37:52,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:37:52" (1/1) ... [2021-11-12 22:37:52,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:37:52,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:37:52,922 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_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c[2728,2741] [2021-11-12 22:37:52,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:37:52,954 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 22:37:52,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6acf22f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:52, skipping insertion in model container [2021-11-12 22:37:52,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:37:52,957 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:37:52,960 INFO L158 Benchmark]: Toolchain (without parser) took 315.24ms. Allocated memory is still 136.3MB. Free memory was 96.8MB in the beginning and 109.6MB in the end (delta: -12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:37:52,961 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 136.3MB. Free memory is still 113.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:37:52,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.10ms. Allocated memory is still 136.3MB. Free memory was 96.7MB in the beginning and 109.6MB in the end (delta: -12.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:37:52,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 136.3MB. Free memory is still 113.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.10ms. Allocated memory is still 136.3MB. Free memory was 96.7MB in the beginning and 109.6MB in the end (delta: -12.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 117]: 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_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/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_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:37:55,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:37:55,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:37:55,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:37:55,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:37:55,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:37:55,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:37:55,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:37:55,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:37:55,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:37:55,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:37:55,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:37:55,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:37:55,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:37:55,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:37:55,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:37:55,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:37:55,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:37:55,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:37:55,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:37:55,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:37:55,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:37:55,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:37:55,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:37:55,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:37:55,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:37:55,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:37:55,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:37:55,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:37:55,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:37:55,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:37:55,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:37:55,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:37:55,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:37:55,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:37:55,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:37:55,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:37:55,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:37:55,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:37:55,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:37:55,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:37:55,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 22:37:55,492 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:37:55,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:37:55,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:37:55,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:37:55,494 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:37:55,495 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:37:55,495 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:37:55,495 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:37:55,495 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:37:55,496 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:37:55,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:37:55,498 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:37:55,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:37:55,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:37:55,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:37:55,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:37:55,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:37:55,500 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:37:55,500 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:37:55,500 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:37:55,500 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:37:55,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:37:55,501 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:37:55,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:37:55,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:37:55,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:37:55,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:37:55,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:37:55,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:37:55,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:37:55,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:37:55,503 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:37:55,503 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:37:55,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:37:55,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:37:55,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:37:55,504 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_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 [2021-11-12 22:37:55,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:37:55,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:37:55,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:37:55,897 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:37:55,899 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:37:55,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2021-11-12 22:37:55,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/data/5572d52d9/7da61534e2004e65ae0a80358e9b714d/FLAGb9cbe50fe [2021-11-12 22:37:56,621 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:37:56,621 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2021-11-12 22:37:56,631 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/data/5572d52d9/7da61534e2004e65ae0a80358e9b714d/FLAGb9cbe50fe [2021-11-12 22:37:56,942 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/data/5572d52d9/7da61534e2004e65ae0a80358e9b714d [2021-11-12 22:37:56,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:37:56,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:37:56,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:37:56,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:37:56,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:37:56,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:37:56" (1/1) ... [2021-11-12 22:37:56,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdfc7bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:56, skipping insertion in model container [2021-11-12 22:37:56,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:37:56" (1/1) ... [2021-11-12 22:37:56,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:37:56,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:37:57,154 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_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c[2728,2741] [2021-11-12 22:37:57,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:37:57,232 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:37:57,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:37:57,285 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_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c[2728,2741] [2021-11-12 22:37:57,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:37:57,312 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:37:57,354 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_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c[2728,2741] [2021-11-12 22:37:57,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:37:57,381 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:37:57,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57 WrapperNode [2021-11-12 22:37:57,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:37:57,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:37:57,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:37:57,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:37:57,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57" (1/1) ... [2021-11-12 22:37:57,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57" (1/1) ... [2021-11-12 22:37:57,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:37:57,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:37:57,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:37:57,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:37:57,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57" (1/1) ... [2021-11-12 22:37:57,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57" (1/1) ... [2021-11-12 22:37:57,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57" (1/1) ... [2021-11-12 22:37:57,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57" (1/1) ... [2021-11-12 22:37:57,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57" (1/1) ... [2021-11-12 22:37:57,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57" (1/1) ... [2021-11-12 22:37:57,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57" (1/1) ... [2021-11-12 22:37:57,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:37:57,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:37:57,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:37:57,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:37:57,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57" (1/1) ... [2021-11-12 22:37:57,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:37:57,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:37:57,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:37:57,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:37:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:37:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:37:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:37:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-12 22:37:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-12 22:37:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-12 22:37:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-12 22:37:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-12 22:37:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-12 22:37:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:37:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:37:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:37:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:37:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:37:57,600 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 22:37:58,466 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:37:58,469 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-12 22:37:58,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:37:58 BoogieIcfgContainer [2021-11-12 22:37:58,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:37:58,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:37:58,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:37:58,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:37:58,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:37:56" (1/3) ... [2021-11-12 22:37:58,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b77c86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:37:58, skipping insertion in model container [2021-11-12 22:37:58,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:37:57" (2/3) ... [2021-11-12 22:37:58,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b77c86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:37:58, skipping insertion in model container [2021-11-12 22:37:58,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:37:58" (3/3) ... [2021-11-12 22:37:58,482 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-array-int-trans.wvr.c [2021-11-12 22:37:58,489 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 22:37:58,489 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:37:58,490 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:37:58,490 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 22:37:58,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,578 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,578 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,580 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,581 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,581 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,582 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,582 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,582 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,584 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,584 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,584 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,601 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,603 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,612 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,612 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,612 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,612 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,612 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,613 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,613 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,613 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,614 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,614 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,615 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,615 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,615 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,615 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,615 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,616 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,616 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,616 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,617 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,618 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,618 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,618 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,618 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,619 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,619 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,619 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,619 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,619 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,620 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,620 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,623 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,623 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,624 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,624 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,624 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,624 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,625 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,625 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,625 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,625 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,625 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,626 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,626 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,626 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,626 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,626 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,627 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,627 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,627 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,647 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,648 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,648 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,648 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,648 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,648 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,654 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,654 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,654 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,654 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,654 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,656 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,656 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,656 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,656 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,658 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,660 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,660 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,660 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,660 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,661 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,661 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,662 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,662 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,662 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,679 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,679 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,680 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,680 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,680 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,681 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,681 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,681 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,681 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,681 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,682 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,682 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,682 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,682 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,683 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,683 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,683 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,683 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,683 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,685 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,685 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,685 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,686 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,686 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,686 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,686 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,686 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,687 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,687 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,688 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,688 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,688 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,688 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,689 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,689 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,689 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,689 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,690 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,690 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,690 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,690 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,690 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,691 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,691 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,691 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,691 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,691 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,692 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,692 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,692 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,692 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,692 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,693 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,693 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,693 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,693 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,694 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,694 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,694 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,694 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,694 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,695 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,695 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,695 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,695 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,696 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,696 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,696 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,701 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,703 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,703 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,703 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,703 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,704 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,704 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,704 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,704 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,705 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,705 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,705 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,705 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,705 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,706 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,706 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,706 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,706 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,706 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,707 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,707 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,707 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,707 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,707 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,708 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,708 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,708 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,708 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,708 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,709 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,709 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,709 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,709 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,710 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,710 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,710 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,713 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,714 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,714 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,714 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,715 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,715 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,715 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,715 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,715 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,716 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,717 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,717 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,718 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,718 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,718 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,718 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,722 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,722 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,722 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,723 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,723 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,723 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,723 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,726 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,727 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,727 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,727 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,727 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,728 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,728 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,728 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,728 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,728 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,729 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,729 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,729 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,729 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,730 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,730 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:37:58,733 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-12 22:37:58,788 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:37:58,796 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:37:58,796 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-12 22:37:58,816 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 22:37:58,831 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 341 transitions, 706 flow [2021-11-12 22:37:58,835 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 341 transitions, 706 flow [2021-11-12 22:37:58,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 323 places, 341 transitions, 706 flow [2021-11-12 22:37:58,984 INFO L129 PetriNetUnfolder]: 28/338 cut-off events. [2021-11-12 22:37:58,985 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-12 22:37:58,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 338 events. 28/338 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 572 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 261. Up to 3 conditions per place. [2021-11-12 22:37:59,026 INFO L116 LiptonReduction]: Number of co-enabled transitions 17934 [2021-11-12 22:38:27,847 INFO L131 LiptonReduction]: Checked pairs total: 20124 [2021-11-12 22:38:27,847 INFO L133 LiptonReduction]: Total number of compositions: 383 [2021-11-12 22:38:27,854 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 40 transitions, 104 flow [2021-11-12 22:38:27,894 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 349 states, 348 states have (on average 3.5344827586206895) internal successors, (1230), 348 states have internal predecessors, (1230), 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 22:38:27,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 348 states have (on average 3.5344827586206895) internal successors, (1230), 348 states have internal predecessors, (1230), 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 22:38:27,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 22:38:27,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:27,916 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] [2021-11-12 22:38:27,916 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:38:27,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:27,921 INFO L85 PathProgramCache]: Analyzing trace with hash -734185911, now seen corresponding path program 1 times [2021-11-12 22:38:27,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:27,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513469241] [2021-11-12 22:38:27,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:27,936 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:27,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:27,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:27,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:38:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:28,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:38:28,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:28,944 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 22:38:28,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:29,174 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 22:38:29,175 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:29,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513469241] [2021-11-12 22:38:29,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513469241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:38:29,176 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:38:29,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-11-12 22:38:29,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699524551] [2021-11-12 22:38:29,179 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:38:29,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:38:29,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:29,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:38:29,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:38:29,214 INFO L87 Difference]: Start difference. First operand has 349 states, 348 states have (on average 3.5344827586206895) internal successors, (1230), 348 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:29,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:38:29,991 INFO L93 Difference]: Finished difference Result 675 states and 2321 transitions. [2021-11-12 22:38:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:38:29,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-12 22:38:29,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:38:30,024 INFO L225 Difference]: With dead ends: 675 [2021-11-12 22:38:30,024 INFO L226 Difference]: Without dead ends: 497 [2021-11-12 22:38:30,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:38:30,030 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 530.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.71ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 160 IncrementalHoareTripleChecker+Unchecked, 638.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:38:30,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 272 Unknown, 0 Unchecked, 4.71ms Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 160 Unchecked, 638.75ms Time] [2021-11-12 22:38:30,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2021-11-12 22:38:30,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 453. [2021-11-12 22:38:30,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 452 states have (on average 3.506637168141593) internal successors, (1585), 452 states have internal predecessors, (1585), 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 22:38:30,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 1585 transitions. [2021-11-12 22:38:30,120 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 1585 transitions. Word has length 22 [2021-11-12 22:38:30,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:38:30,121 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 1585 transitions. [2021-11-12 22:38:30,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:30,122 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 1585 transitions. [2021-11-12 22:38:30,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 22:38:30,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:30,127 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] [2021-11-12 22:38:30,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:30,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:38:30,329 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:38:30,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:30,329 INFO L85 PathProgramCache]: Analyzing trace with hash 735448670, now seen corresponding path program 1 times [2021-11-12 22:38:30,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:30,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621325494] [2021-11-12 22:38:30,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:30,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:30,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:30,332 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:30,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:38:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:30,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-12 22:38:30,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:31,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:31,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:32,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:32,421 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:32,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621325494] [2021-11-12 22:38:32,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621325494] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:38:32,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [586743851] [2021-11-12 22:38:32,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:32,422 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:38:32,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:38:32,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:38:32,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-12 22:38:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:32,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 22:38:32,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:33,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:38:33,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:38:33,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [586743851] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:38:33,806 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:38:33,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 21 [2021-11-12 22:38:33,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670651328] [2021-11-12 22:38:33,807 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:38:33,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 22:38:33,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:33,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 22:38:33,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:38:33,808 INFO L87 Difference]: Start difference. First operand 453 states and 1585 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:34,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:38:34,268 INFO L93 Difference]: Finished difference Result 807 states and 2757 transitions. [2021-11-12 22:38:34,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:38:34,269 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-12 22:38:34,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:38:34,277 INFO L225 Difference]: With dead ends: 807 [2021-11-12 22:38:34,277 INFO L226 Difference]: Without dead ends: 735 [2021-11-12 22:38:34,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2021-11-12 22:38:34,279 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 118 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 257.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.75ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 83 IncrementalHoareTripleChecker+Unchecked, 338.24ms IncrementalHoareTripleChecker+Time [2021-11-12 22:38:34,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 0 Invalid, 178 Unknown, 0 Unchecked, 1.75ms Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 83 Unchecked, 338.24ms Time] [2021-11-12 22:38:34,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-11-12 22:38:34,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 699. [2021-11-12 22:38:34,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 3.4068767908309456) internal successors, (2378), 698 states have internal predecessors, (2378), 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 22:38:34,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 2378 transitions. [2021-11-12 22:38:34,330 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 2378 transitions. Word has length 23 [2021-11-12 22:38:34,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:38:34,331 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 2378 transitions. [2021-11-12 22:38:34,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:34,331 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 2378 transitions. [2021-11-12 22:38:34,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 22:38:34,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:34,335 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] [2021-11-12 22:38:34,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:34,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:34,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:38:34,747 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:38:34,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:34,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1541885170, now seen corresponding path program 2 times [2021-11-12 22:38:34,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:34,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495997271] [2021-11-12 22:38:34,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:38:34,749 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:34,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:34,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:34,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:38:34,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:38:34,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:38:34,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:38:34,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:38:35,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:38:35,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:35,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495997271] [2021-11-12 22:38:35,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495997271] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:38:35,485 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:38:35,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-12 22:38:35,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432252718] [2021-11-12 22:38:35,486 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:38:35,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:38:35,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:35,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:38:35,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:38:35,488 INFO L87 Difference]: Start difference. First operand 699 states and 2378 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:36,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:38:36,028 INFO L93 Difference]: Finished difference Result 1110 states and 3759 transitions. [2021-11-12 22:38:36,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:38:36,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-12 22:38:36,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:38:36,039 INFO L225 Difference]: With dead ends: 1110 [2021-11-12 22:38:36,039 INFO L226 Difference]: Without dead ends: 915 [2021-11-12 22:38:36,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:38:36,041 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 83 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 409.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.85ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 178 IncrementalHoareTripleChecker+Unchecked, 468.30ms IncrementalHoareTripleChecker+Time [2021-11-12 22:38:36,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 0 Invalid, 317 Unknown, 0 Unchecked, 1.85ms Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 178 Unchecked, 468.30ms Time] [2021-11-12 22:38:36,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2021-11-12 22:38:36,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 615. [2021-11-12 22:38:36,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 614 states have (on average 3.4413680781758957) internal successors, (2113), 614 states have internal predecessors, (2113), 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 22:38:36,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 2113 transitions. [2021-11-12 22:38:36,080 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 2113 transitions. Word has length 23 [2021-11-12 22:38:36,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:38:36,081 INFO L470 AbstractCegarLoop]: Abstraction has 615 states and 2113 transitions. [2021-11-12 22:38:36,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:36,081 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 2113 transitions. [2021-11-12 22:38:36,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-12 22:38:36,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:36,084 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] [2021-11-12 22:38:36,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:36,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:38:36,297 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:38:36,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:36,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1058891173, now seen corresponding path program 1 times [2021-11-12 22:38:36,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:36,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891528372] [2021-11-12 22:38:36,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:36,298 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:36,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:36,299 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:36,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:38:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:36,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:38:36,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:37,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:37,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:37,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:37,451 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:37,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891528372] [2021-11-12 22:38:37,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891528372] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:38:37,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [424051385] [2021-11-12 22:38:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:37,452 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:38:37,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:38:37,456 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:38:37,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-12 22:38:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:37,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:38:37,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:38,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:38,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:38,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [424051385] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:38:38,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720567903] [2021-11-12 22:38:38,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:38,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:38:38,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:38:38,662 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:38:38,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-12 22:38:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:38,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:38:38,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:39,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:39,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:39,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:39,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720567903] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:38:39,190 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:38:39,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 7, 7, 7, 7] total 23 [2021-11-12 22:38:39,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228286475] [2021-11-12 22:38:39,191 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:38:39,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-12 22:38:39,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:39,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-12 22:38:39,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2021-11-12 22:38:39,193 INFO L87 Difference]: Start difference. First operand 615 states and 2113 transitions. Second operand has 24 states, 24 states have (on average 3.625) internal successors, (87), 23 states have internal predecessors, (87), 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 22:38:47,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:38:47,138 INFO L93 Difference]: Finished difference Result 3271 states and 11058 transitions. [2021-11-12 22:38:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-12 22:38:47,139 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.625) internal successors, (87), 23 states have internal predecessors, (87), 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 24 [2021-11-12 22:38:47,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:38:47,171 INFO L225 Difference]: With dead ends: 3271 [2021-11-12 22:38:47,186 INFO L226 Difference]: Without dead ends: 3055 [2021-11-12 22:38:47,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=559, Invalid=2197, Unknown=0, NotChecked=0, Total=2756 [2021-11-12 22:38:47,197 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 535 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5017.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.80ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 988 IncrementalHoareTripleChecker+Unchecked, 5681.35ms IncrementalHoareTripleChecker+Time [2021-11-12 22:38:47,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [535 Valid, 0 Invalid, 3247 Unknown, 0 Unchecked, 21.80ms Time], IncrementalHoareTripleChecker [73 Valid, 2186 Invalid, 0 Unknown, 988 Unchecked, 5681.35ms Time] [2021-11-12 22:38:47,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2021-11-12 22:38:47,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 791. [2021-11-12 22:38:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 790 states have (on average 3.5139240506329115) internal successors, (2776), 790 states have internal predecessors, (2776), 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 22:38:47,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 2776 transitions. [2021-11-12 22:38:47,271 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 2776 transitions. Word has length 24 [2021-11-12 22:38:47,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:38:47,272 INFO L470 AbstractCegarLoop]: Abstraction has 791 states and 2776 transitions. [2021-11-12 22:38:47,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.625) internal successors, (87), 23 states have internal predecessors, (87), 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 22:38:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 2776 transitions. [2021-11-12 22:38:47,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-12 22:38:47,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:47,276 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] [2021-11-12 22:38:47,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:47,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:47,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-12 22:38:47,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:38:47,902 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:38:47,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:47,902 INFO L85 PathProgramCache]: Analyzing trace with hash 978314797, now seen corresponding path program 1 times [2021-11-12 22:38:47,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:47,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325873312] [2021-11-12 22:38:47,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:47,903 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:47,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:47,904 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:47,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:38:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:48,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:38:48,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:48,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:49,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:49,037 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:49,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325873312] [2021-11-12 22:38:49,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325873312] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:38:49,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [267067887] [2021-11-12 22:38:49,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:49,038 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:38:49,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:38:49,038 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:38:49,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-12 22:38:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:49,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:38:49,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:49,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:38:49,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:38:49,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [267067887] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:38:49,512 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:38:49,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 19 [2021-11-12 22:38:49,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775722145] [2021-11-12 22:38:49,512 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:38:49,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:38:49,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:49,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:38:49,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:38:49,514 INFO L87 Difference]: Start difference. First operand 791 states and 2776 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:50,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:38:50,062 INFO L93 Difference]: Finished difference Result 1287 states and 4268 transitions. [2021-11-12 22:38:50,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:38:50,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-12 22:38:50,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:38:50,074 INFO L225 Difference]: With dead ends: 1287 [2021-11-12 22:38:50,074 INFO L226 Difference]: Without dead ends: 1111 [2021-11-12 22:38:50,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:38:50,076 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 77 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 397.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 475.85ms IncrementalHoareTripleChecker+Time [2021-11-12 22:38:50,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 0 Invalid, 193 Unknown, 0 Unchecked, 1.27ms Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 475.85ms Time] [2021-11-12 22:38:50,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2021-11-12 22:38:50,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1009. [2021-11-12 22:38:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1008 states have (on average 3.4692460317460316) internal successors, (3497), 1008 states have internal predecessors, (3497), 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 22:38:50,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 3497 transitions. [2021-11-12 22:38:50,120 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 3497 transitions. Word has length 25 [2021-11-12 22:38:50,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:38:50,120 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 3497 transitions. [2021-11-12 22:38:50,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:50,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 3497 transitions. [2021-11-12 22:38:50,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 22:38:50,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:50,125 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] [2021-11-12 22:38:50,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-12 22:38:50,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2021-11-12 22:38:50,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:38:50,537 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:38:50,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:50,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1418994936, now seen corresponding path program 1 times [2021-11-12 22:38:50,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:50,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297074117] [2021-11-12 22:38:50,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:50,539 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:50,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:50,540 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:50,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:38:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:50,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:38:50,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:50,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:38:50,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:50,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:38:50,884 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:50,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297074117] [2021-11-12 22:38:50,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297074117] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:38:50,884 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:38:50,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-12 22:38:50,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410807127] [2021-11-12 22:38:50,884 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:38:50,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:38:50,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:50,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:38:50,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:38:50,885 INFO L87 Difference]: Start difference. First operand 1009 states and 3497 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 7 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 22:38:51,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:38:51,402 INFO L93 Difference]: Finished difference Result 1132 states and 3807 transitions. [2021-11-12 22:38:51,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:38:51,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 7 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 26 [2021-11-12 22:38:51,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:38:51,410 INFO L225 Difference]: With dead ends: 1132 [2021-11-12 22:38:51,410 INFO L226 Difference]: Without dead ends: 951 [2021-11-12 22:38:51,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:38:51,411 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 70 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 390.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.39ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 494.89ms IncrementalHoareTripleChecker+Time [2021-11-12 22:38:51,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 0 Invalid, 197 Unknown, 0 Unchecked, 1.39ms Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 494.89ms Time] [2021-11-12 22:38:51,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2021-11-12 22:38:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 951. [2021-11-12 22:38:51,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 950 states have (on average 3.471578947368421) internal successors, (3298), 950 states have internal predecessors, (3298), 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 22:38:51,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 3298 transitions. [2021-11-12 22:38:51,452 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 3298 transitions. Word has length 26 [2021-11-12 22:38:51,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:38:51,452 INFO L470 AbstractCegarLoop]: Abstraction has 951 states and 3298 transitions. [2021-11-12 22:38:51,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 7 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 22:38:51,453 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 3298 transitions. [2021-11-12 22:38:51,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 22:38:51,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:51,460 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] [2021-11-12 22:38:51,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:51,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:38:51,673 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:38:51,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:51,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1351469485, now seen corresponding path program 1 times [2021-11-12 22:38:51,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:51,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157169849] [2021-11-12 22:38:51,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:51,675 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:51,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:51,676 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:51,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:38:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:51,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:38:51,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:52,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:38:52,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:52,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:38:52,903 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:52,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157169849] [2021-11-12 22:38:52,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157169849] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:38:52,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1760043538] [2021-11-12 22:38:52,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:38:52,904 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:38:52,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:38:52,905 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:38:52,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-12 22:38:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:53,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:38:53,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:53,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:38:53,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:53,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:38:53,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1760043538] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:38:53,442 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:38:53,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 19 [2021-11-12 22:38:53,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819382831] [2021-11-12 22:38:53,442 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:38:53,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:38:53,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:53,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:38:53,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:38:53,444 INFO L87 Difference]: Start difference. First operand 951 states and 3298 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:53,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:38:53,878 INFO L93 Difference]: Finished difference Result 951 states and 3244 transitions. [2021-11-12 22:38:53,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:38:53,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-12 22:38:53,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:38:53,886 INFO L225 Difference]: With dead ends: 951 [2021-11-12 22:38:53,887 INFO L226 Difference]: Without dead ends: 828 [2021-11-12 22:38:53,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:38:53,888 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 58 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 359.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.28ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 416.39ms IncrementalHoareTripleChecker+Time [2021-11-12 22:38:53,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 0 Invalid, 161 Unknown, 0 Unchecked, 1.28ms Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 416.39ms Time] [2021-11-12 22:38:53,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2021-11-12 22:38:53,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 828. [2021-11-12 22:38:53,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 827 states have (on average 3.493349455864571) internal successors, (2889), 827 states have internal predecessors, (2889), 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 22:38:53,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 2889 transitions. [2021-11-12 22:38:53,920 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 2889 transitions. Word has length 26 [2021-11-12 22:38:53,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:38:53,921 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 2889 transitions. [2021-11-12 22:38:53,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:53,921 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 2889 transitions. [2021-11-12 22:38:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 22:38:53,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:53,925 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:38:53,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:54,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:54,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:38:54,351 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:38:54,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:54,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1861664311, now seen corresponding path program 2 times [2021-11-12 22:38:54,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:54,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377203810] [2021-11-12 22:38:54,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:38:54,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:54,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:54,364 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:54,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:38:54,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:38:54,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:38:54,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-12 22:38:54,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 22:38:55,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:56,888 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 22:38:56,888 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:56,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377203810] [2021-11-12 22:38:56,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377203810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:38:56,888 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:38:56,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-11-12 22:38:56,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713987883] [2021-11-12 22:38:56,888 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:38:56,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:38:56,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:56,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:38:56,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:38:56,889 INFO L87 Difference]: Start difference. First operand 828 states and 2889 transitions. Second operand has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:58,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:38:58,897 INFO L93 Difference]: Finished difference Result 1709 states and 5931 transitions. [2021-11-12 22:38:58,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:38:58,898 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-12 22:38:58,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:38:58,914 INFO L225 Difference]: With dead ends: 1709 [2021-11-12 22:38:58,914 INFO L226 Difference]: Without dead ends: 1694 [2021-11-12 22:38:58,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:38:58,915 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 357 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 856.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.52ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 155 IncrementalHoareTripleChecker+Unchecked, 1006.62ms IncrementalHoareTripleChecker+Time [2021-11-12 22:38:58,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 0 Invalid, 397 Unknown, 0 Unchecked, 3.52ms Time], IncrementalHoareTripleChecker [14 Valid, 228 Invalid, 0 Unknown, 155 Unchecked, 1006.62ms Time] [2021-11-12 22:38:58,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2021-11-12 22:38:58,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 924. [2021-11-12 22:38:58,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 923 states have (on average 3.4431202600216686) internal successors, (3178), 923 states have internal predecessors, (3178), 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 22:38:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 3178 transitions. [2021-11-12 22:38:58,961 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 3178 transitions. Word has length 26 [2021-11-12 22:38:58,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:38:58,961 INFO L470 AbstractCegarLoop]: Abstraction has 924 states and 3178 transitions. [2021-11-12 22:38:58,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 3178 transitions. [2021-11-12 22:38:58,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 22:38:58,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:58,965 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:38:58,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:59,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:38:59,177 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:38:59,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1727675707, now seen corresponding path program 3 times [2021-11-12 22:38:59,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:59,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338661443] [2021-11-12 22:38:59,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 22:38:59,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:59,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:59,180 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:59,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:38:59,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-12 22:38:59,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:38:59,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-12 22:38:59,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:00,238 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 22:39:00,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:01,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 22:39:01,315 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:39:01,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338661443] [2021-11-12 22:39:01,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338661443] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:39:01,316 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:39:01,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-11-12 22:39:01,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61260334] [2021-11-12 22:39:01,316 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:39:01,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:39:01,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:39:01,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:39:01,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:39:01,318 INFO L87 Difference]: Start difference. First operand 924 states and 3178 transitions. Second operand has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:39:02,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:39:02,924 INFO L93 Difference]: Finished difference Result 2248 states and 7959 transitions. [2021-11-12 22:39:02,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-12 22:39:02,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-12 22:39:02,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:39:02,945 INFO L225 Difference]: With dead ends: 2248 [2021-11-12 22:39:02,945 INFO L226 Difference]: Without dead ends: 2234 [2021-11-12 22:39:02,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=197, Invalid=403, Unknown=0, NotChecked=0, Total=600 [2021-11-12 22:39:02,946 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 142 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 723.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.38ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 135 IncrementalHoareTripleChecker+Unchecked, 848.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:39:02,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 0 Invalid, 370 Unknown, 0 Unchecked, 2.38ms Time], IncrementalHoareTripleChecker [14 Valid, 221 Invalid, 0 Unknown, 135 Unchecked, 848.00ms Time] [2021-11-12 22:39:02,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2021-11-12 22:39:02,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 946. [2021-11-12 22:39:02,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 945 states have (on average 3.4687830687830687) internal successors, (3278), 945 states have internal predecessors, (3278), 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 22:39:02,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 3278 transitions. [2021-11-12 22:39:02,998 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 3278 transitions. Word has length 26 [2021-11-12 22:39:02,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:39:02,998 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 3278 transitions. [2021-11-12 22:39:02,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:39:02,999 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 3278 transitions. [2021-11-12 22:39:03,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 22:39:03,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:39:03,003 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:39:03,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:39:03,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:39:03,215 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:39:03,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:39:03,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1859457143, now seen corresponding path program 4 times [2021-11-12 22:39:03,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:39:03,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166290821] [2021-11-12 22:39:03,216 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:39:03,216 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:39:03,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:39:03,218 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:39:03,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:39:03,391 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:39:03,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:39:03,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-12 22:39:03,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:39:03,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:04,531 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:39:04,531 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:39:04,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166290821] [2021-11-12 22:39:04,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166290821] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:39:04,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1327185502] [2021-11-12 22:39:04,532 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:39:04,532 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:39:04,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:39:04,533 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:39:04,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-12 22:39:04,727 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:39:04,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:39:04,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 22:39:04,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:05,260 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:39:05,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:05,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:39:05,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1327185502] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:39:05,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543290625] [2021-11-12 22:39:05,995 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:39:05,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:39:05,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:39:05,997 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:39:06,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-12 22:39:06,096 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:39:06,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:39:06,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-12 22:39:06,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:06,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:39:06,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:39:06,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543290625] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:39:06,765 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:39:06,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9, 9, 9, 9] total 32 [2021-11-12 22:39:06,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443138661] [2021-11-12 22:39:06,766 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:39:06,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-12 22:39:06,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:39:06,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-12 22:39:06,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=807, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 22:39:06,767 INFO L87 Difference]: Start difference. First operand 946 states and 3278 transitions. Second operand has 33 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 32 states have internal predecessors, (93), 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 22:39:14,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:39:14,295 INFO L93 Difference]: Finished difference Result 5066 states and 17046 transitions. [2021-11-12 22:39:14,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-12 22:39:14,296 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 32 states have internal predecessors, (93), 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 26 [2021-11-12 22:39:14,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:39:14,329 INFO L225 Difference]: With dead ends: 5066 [2021-11-12 22:39:14,330 INFO L226 Difference]: Without dead ends: 4776 [2021-11-12 22:39:14,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=790, Invalid=2750, Unknown=0, NotChecked=0, Total=3540 [2021-11-12 22:39:14,332 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1182 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 2424 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4415.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.47ms SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 170 IncrementalHoareTripleChecker+Unchecked, 5077.28ms IncrementalHoareTripleChecker+Time [2021-11-12 22:39:14,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 0 Invalid, 2718 Unknown, 0 Unchecked, 15.47ms Time], IncrementalHoareTripleChecker [124 Valid, 2424 Invalid, 0 Unknown, 170 Unchecked, 5077.28ms Time] [2021-11-12 22:39:14,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4776 states. [2021-11-12 22:39:14,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4776 to 951. [2021-11-12 22:39:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 950 states have (on average 3.46) internal successors, (3287), 950 states have internal predecessors, (3287), 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 22:39:14,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 3287 transitions. [2021-11-12 22:39:14,466 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 3287 transitions. Word has length 26 [2021-11-12 22:39:14,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:39:14,469 INFO L470 AbstractCegarLoop]: Abstraction has 951 states and 3287 transitions. [2021-11-12 22:39:14,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 32 states have internal predecessors, (93), 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 22:39:14,469 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 3287 transitions. [2021-11-12 22:39:14,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:39:14,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:39:14,474 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] [2021-11-12 22:39:14,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 22:39:14,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-12 22:39:14,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-12 22:39:15,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:39:15,088 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:39:15,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:39:15,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1543544989, now seen corresponding path program 1 times [2021-11-12 22:39:15,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:39:15,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408562441] [2021-11-12 22:39:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:39:15,089 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:39:15,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:39:15,090 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:39:15,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 22:39:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:39:15,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-12 22:39:15,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:16,603 INFO L354 Elim1Store]: treesize reduction 156, result has 58.2 percent of original size [2021-11-12 22:39:16,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 219 treesize of output 347 [2021-11-12 22:39:23,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:39:23,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:25,523 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:39:25,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:39:30,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:39:30,881 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:39:30,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408562441] [2021-11-12 22:39:30,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408562441] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:39:30,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1475010128] [2021-11-12 22:39:30,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:39:30,881 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:39:30,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:39:30,882 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:39:30,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-12 22:39:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:39:31,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 22:39:31,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:31,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:39:31,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:33,461 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:39:33,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:39:36,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:39:36,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1475010128] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:39:36,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615195004] [2021-11-12 22:39:36,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:39:36,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:39:36,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:39:36,797 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:39:36,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-12 22:39:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:39:36,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-12 22:39:36,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:38,498 INFO L354 Elim1Store]: treesize reduction 156, result has 58.2 percent of original size [2021-11-12 22:39:38,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 219 treesize of output 347 [2021-11-12 22:39:49,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:39:49,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:51,076 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:39:51,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:39:53,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:39:53,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615195004] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:39:53,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 22:39:53,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8, 7, 7, 10] total 40 [2021-11-12 22:39:53,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219812409] [2021-11-12 22:39:53,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:39:53,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:39:53,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:39:53,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:39:53,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1411, Unknown=2, NotChecked=0, Total=1640 [2021-11-12 22:39:53,345 INFO L87 Difference]: Start difference. First operand 951 states and 3287 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 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 22:39:56,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:39:56,577 INFO L93 Difference]: Finished difference Result 1996 states and 6930 transitions. [2021-11-12 22:39:56,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 22:39:56,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-12 22:39:56,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:39:56,587 INFO L225 Difference]: With dead ends: 1996 [2021-11-12 22:39:56,587 INFO L226 Difference]: Without dead ends: 1945 [2021-11-12 22:39:56,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=304, Invalid=1950, Unknown=2, NotChecked=0, Total=2256 [2021-11-12 22:39:56,589 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 197 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1715.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.78ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1952.26ms IncrementalHoareTripleChecker+Time [2021-11-12 22:39:56,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 0 Invalid, 454 Unknown, 0 Unchecked, 2.78ms Time], IncrementalHoareTripleChecker [14 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 1952.26ms Time] [2021-11-12 22:39:56,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2021-11-12 22:39:56,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1027. [2021-11-12 22:39:56,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1026 states have (on average 3.4512670565302144) internal successors, (3541), 1026 states have internal predecessors, (3541), 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 22:39:56,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 3541 transitions. [2021-11-12 22:39:56,655 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 3541 transitions. Word has length 27 [2021-11-12 22:39:56,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:39:56,656 INFO L470 AbstractCegarLoop]: Abstraction has 1027 states and 3541 transitions. [2021-11-12 22:39:56,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 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 22:39:56,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 3541 transitions. [2021-11-12 22:39:56,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:39:56,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:39:56,660 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] [2021-11-12 22:39:56,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-11-12 22:39:56,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-12 22:39:57,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-11-12 22:39:57,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:39:57,271 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:39:57,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:39:57,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1208991373, now seen corresponding path program 2 times [2021-11-12 22:39:57,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:39:57,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499737829] [2021-11-12 22:39:57,272 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:39:57,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:39:57,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:39:57,273 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:39:57,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-12 22:39:57,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:39:57,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:39:57,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:39:57,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:58,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:39:58,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:59,568 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:39:59,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:40:00,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:40:00,857 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:40:00,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499737829] [2021-11-12 22:40:00,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499737829] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:40:00,857 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:40:00,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-11-12 22:40:00,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083055599] [2021-11-12 22:40:00,858 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:40:00,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:40:00,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:40:00,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:40:00,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:40:00,860 INFO L87 Difference]: Start difference. First operand 1027 states and 3541 transitions. Second operand has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:40:02,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:40:02,473 INFO L93 Difference]: Finished difference Result 1507 states and 4826 transitions. [2021-11-12 22:40:02,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 22:40:02,474 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-12 22:40:02,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:40:02,477 INFO L225 Difference]: With dead ends: 1507 [2021-11-12 22:40:02,477 INFO L226 Difference]: Without dead ends: 1173 [2021-11-12 22:40:02,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=152, Invalid=310, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:40:02,478 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 253 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1038.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.17ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 1190.13ms IncrementalHoareTripleChecker+Time [2021-11-12 22:40:02,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 0 Invalid, 362 Unknown, 0 Unchecked, 2.17ms Time], IncrementalHoareTripleChecker [12 Valid, 349 Invalid, 0 Unknown, 1 Unchecked, 1190.13ms Time] [2021-11-12 22:40:02,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2021-11-12 22:40:02,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 979. [2021-11-12 22:40:02,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 978 states have (on average 3.3803680981595092) internal successors, (3306), 978 states have internal predecessors, (3306), 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 22:40:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 3306 transitions. [2021-11-12 22:40:02,522 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 3306 transitions. Word has length 27 [2021-11-12 22:40:02,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:40:02,522 INFO L470 AbstractCegarLoop]: Abstraction has 979 states and 3306 transitions. [2021-11-12 22:40:02,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:40:02,523 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 3306 transitions. [2021-11-12 22:40:02,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:40:02,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:40:02,527 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] [2021-11-12 22:40:02,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-11-12 22:40:02,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:40:02,739 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:40:02,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:40:02,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1545627593, now seen corresponding path program 3 times [2021-11-12 22:40:02,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:40:02,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338393545] [2021-11-12 22:40:02,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 22:40:02,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:40:02,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:40:02,741 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:40:02,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-12 22:40:02,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-12 22:40:02,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:40:02,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:40:02,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:40:03,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:40:03,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:40:05,064 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:40:05,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:40:06,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:40:06,382 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:40:06,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338393545] [2021-11-12 22:40:06,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338393545] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:40:06,383 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:40:06,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-11-12 22:40:06,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448186814] [2021-11-12 22:40:06,384 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:40:06,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:40:06,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:40:06,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:40:06,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:40:06,385 INFO L87 Difference]: Start difference. First operand 979 states and 3306 transitions. Second operand has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:40:08,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:40:08,129 INFO L93 Difference]: Finished difference Result 1507 states and 4797 transitions. [2021-11-12 22:40:08,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 22:40:08,130 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-12 22:40:08,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:40:08,145 INFO L225 Difference]: With dead ends: 1507 [2021-11-12 22:40:08,145 INFO L226 Difference]: Without dead ends: 1277 [2021-11-12 22:40:08,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:40:08,146 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 279 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1084.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.31ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 1241.04ms IncrementalHoareTripleChecker+Time [2021-11-12 22:40:08,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 0 Invalid, 413 Unknown, 0 Unchecked, 2.31ms Time], IncrementalHoareTripleChecker [18 Valid, 394 Invalid, 0 Unknown, 1 Unchecked, 1241.04ms Time] [2021-11-12 22:40:08,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2021-11-12 22:40:08,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1005. [2021-11-12 22:40:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 1004 states have (on average 3.3207171314741037) internal successors, (3334), 1004 states have internal predecessors, (3334), 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 22:40:08,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 3334 transitions. [2021-11-12 22:40:08,190 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 3334 transitions. Word has length 27 [2021-11-12 22:40:08,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:40:08,191 INFO L470 AbstractCegarLoop]: Abstraction has 1005 states and 3334 transitions. [2021-11-12 22:40:08,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:40:08,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 3334 transitions. [2021-11-12 22:40:08,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:40:08,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:40:08,195 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] [2021-11-12 22:40:08,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-12 22:40:08,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:40:08,408 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:40:08,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:40:08,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2069527857, now seen corresponding path program 4 times [2021-11-12 22:40:08,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:40:08,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767335100] [2021-11-12 22:40:08,410 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:40:08,410 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:40:08,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:40:08,411 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:40:08,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-12 22:40:08,657 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:40:08,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:40:08,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-12 22:40:08,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:40:10,341 INFO L354 Elim1Store]: treesize reduction 156, result has 58.2 percent of original size [2021-11-12 22:40:10,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 219 treesize of output 347 [2021-11-12 22:40:17,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:40:17,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:40:19,581 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:40:19,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:40:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:40:22,205 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:40:22,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767335100] [2021-11-12 22:40:22,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767335100] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:40:22,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [950374120] [2021-11-12 22:40:22,206 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:40:22,206 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:40:22,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:40:22,206 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:40:22,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-11-12 22:40:22,382 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:40:22,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:40:22,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 22:40:22,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:40:23,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:40:23,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:40:25,274 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:40:25,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:40:27,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:40:27,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [950374120] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:40:27,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21962555] [2021-11-12 22:40:27,645 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:40:27,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:40:27,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:40:27,646 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:40:27,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-12 22:40:27,729 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:40:27,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:40:27,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-12 22:40:27,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:40:29,685 INFO L354 Elim1Store]: treesize reduction 156, result has 58.2 percent of original size [2021-11-12 22:40:29,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 219 treesize of output 347 [2021-11-12 22:40:39,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:40:39,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:40:41,464 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:40:41,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:40:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:40:43,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21962555] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:40:43,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 22:40:43,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8, 7, 7, 10] total 40 [2021-11-12 22:40:43,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755342543] [2021-11-12 22:40:43,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:40:43,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:40:43,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:40:43,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:40:43,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1410, Unknown=1, NotChecked=0, Total=1640 [2021-11-12 22:40:43,196 INFO L87 Difference]: Start difference. First operand 1005 states and 3334 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 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 22:40:48,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:40:48,262 INFO L93 Difference]: Finished difference Result 2086 states and 6988 transitions. [2021-11-12 22:40:48,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:40:48,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-12 22:40:48,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:40:48,272 INFO L225 Difference]: With dead ends: 2086 [2021-11-12 22:40:48,272 INFO L226 Difference]: Without dead ends: 2035 [2021-11-12 22:40:48,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=339, Invalid=2210, Unknown=1, NotChecked=0, Total=2550 [2021-11-12 22:40:48,274 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 151 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2506.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.95ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2854.92ms IncrementalHoareTripleChecker+Time [2021-11-12 22:40:48,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 0 Invalid, 661 Unknown, 0 Unchecked, 3.95ms Time], IncrementalHoareTripleChecker [19 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 2854.92ms Time] [2021-11-12 22:40:48,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2021-11-12 22:40:48,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 1005. [2021-11-12 22:40:48,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 1004 states have (on average 3.3157370517928286) internal successors, (3329), 1004 states have internal predecessors, (3329), 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 22:40:48,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 3329 transitions. [2021-11-12 22:40:48,323 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 3329 transitions. Word has length 27 [2021-11-12 22:40:48,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:40:48,324 INFO L470 AbstractCegarLoop]: Abstraction has 1005 states and 3329 transitions. [2021-11-12 22:40:48,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 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 22:40:48,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 3329 transitions. [2021-11-12 22:40:48,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:40:48,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:40:48,328 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] [2021-11-12 22:40:48,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2021-11-12 22:40:48,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-12 22:40:48,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-12 22:40:48,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:40:48,931 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:40:48,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:40:48,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1318721785, now seen corresponding path program 5 times [2021-11-12 22:40:48,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:40:48,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566380022] [2021-11-12 22:40:48,932 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 22:40:48,932 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:40:48,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:40:48,932 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:40:48,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-12 22:40:49,091 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:40:49,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:40:49,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-12 22:40:49,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:40:51,253 INFO L354 Elim1Store]: treesize reduction 156, result has 58.2 percent of original size [2021-11-12 22:40:51,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 239 treesize of output 367 [2021-11-12 22:40:55,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:40:55,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:40:57,510 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:40:57,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:41:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:00,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:00,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566380022] [2021-11-12 22:41:00,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566380022] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:41:00,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1086487072] [2021-11-12 22:41:00,649 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 22:41:00,649 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:41:00,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:41:00,650 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:41:00,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2021-11-12 22:41:00,860 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:41:00,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:41:00,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 22:41:00,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:41:02,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:03,622 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:41:03,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:41:05,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:41:05,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1086487072] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:41:05,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029516832] [2021-11-12 22:41:05,756 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 22:41:05,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:41:05,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:05,758 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:41:05,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-12 22:41:05,857 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:41:05,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:41:05,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-12 22:41:05,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:07,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:08,550 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:41:08,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:41:11,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:41:11,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029516832] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:41:11,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 22:41:11,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8, 7, 7, 10] total 38 [2021-11-12 22:41:11,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018974843] [2021-11-12 22:41:11,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:11,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:41:11,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:11,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:41:11,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1259, Unknown=1, NotChecked=0, Total=1482 [2021-11-12 22:41:11,430 INFO L87 Difference]: Start difference. First operand 1005 states and 3329 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 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 22:41:16,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:16,156 INFO L93 Difference]: Finished difference Result 2170 states and 7274 transitions. [2021-11-12 22:41:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:41:16,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-12 22:41:16,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:16,165 INFO L225 Difference]: With dead ends: 2170 [2021-11-12 22:41:16,166 INFO L226 Difference]: Without dead ends: 2085 [2021-11-12 22:41:16,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=340, Invalid=2011, Unknown=1, NotChecked=0, Total=2352 [2021-11-12 22:41:16,168 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 166 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2271.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.35ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2599.84ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:16,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 0 Invalid, 557 Unknown, 0 Unchecked, 3.35ms Time], IncrementalHoareTripleChecker [23 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 2599.84ms Time] [2021-11-12 22:41:16,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2021-11-12 22:41:16,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1021. [2021-11-12 22:41:16,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 1020 states have (on average 3.347058823529412) internal successors, (3414), 1020 states have internal predecessors, (3414), 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 22:41:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 3414 transitions. [2021-11-12 22:41:16,218 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 3414 transitions. Word has length 27 [2021-11-12 22:41:16,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:16,218 INFO L470 AbstractCegarLoop]: Abstraction has 1021 states and 3414 transitions. [2021-11-12 22:41:16,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 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 22:41:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 3414 transitions. [2021-11-12 22:41:16,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:41:16,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:16,223 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] [2021-11-12 22:41:16,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:16,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:16,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:16,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:16,826 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:41:16,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:16,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1984782423, now seen corresponding path program 6 times [2021-11-12 22:41:16,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:16,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902161371] [2021-11-12 22:41:16,827 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-12 22:41:16,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:16,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:16,828 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:16,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-12 22:41:16,985 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-11-12 22:41:16,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:41:17,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:41:17,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:17,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:41:17,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:19,432 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:41:19,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:41:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:41:20,764 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:20,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902161371] [2021-11-12 22:41:20,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902161371] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:20,765 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:20,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-11-12 22:41:20,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738605339] [2021-11-12 22:41:20,765 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:20,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:41:20,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:20,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:41:20,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:41:20,766 INFO L87 Difference]: Start difference. First operand 1021 states and 3414 transitions. Second operand has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:22,346 INFO L93 Difference]: Finished difference Result 1192 states and 3771 transitions. [2021-11-12 22:41:22,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 22:41:22,347 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-12 22:41:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:22,353 INFO L225 Difference]: With dead ends: 1192 [2021-11-12 22:41:22,353 INFO L226 Difference]: Without dead ends: 1157 [2021-11-12 22:41:22,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:41:22,354 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 221 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 834.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.80ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 950.47ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:22,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 0 Invalid, 345 Unknown, 0 Unchecked, 1.80ms Time], IncrementalHoareTripleChecker [18 Valid, 288 Invalid, 0 Unknown, 39 Unchecked, 950.47ms Time] [2021-11-12 22:41:22,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-11-12 22:41:22,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1099. [2021-11-12 22:41:22,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1098 states have (on average 3.2695810564663024) internal successors, (3590), 1098 states have internal predecessors, (3590), 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 22:41:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 3590 transitions. [2021-11-12 22:41:22,396 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 3590 transitions. Word has length 27 [2021-11-12 22:41:22,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:22,396 INFO L470 AbstractCegarLoop]: Abstraction has 1099 states and 3590 transitions. [2021-11-12 22:41:22,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:22,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 3590 transitions. [2021-11-12 22:41:22,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:41:22,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:22,401 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] [2021-11-12 22:41:22,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:22,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:22,614 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:41:22,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:22,614 INFO L85 PathProgramCache]: Analyzing trace with hash 785265465, now seen corresponding path program 7 times [2021-11-12 22:41:22,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:22,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183245803] [2021-11-12 22:41:22,615 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 22:41:22,615 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:22,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:22,616 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:22,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-12 22:41:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:22,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-12 22:41:22,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:24,677 INFO L354 Elim1Store]: treesize reduction 156, result has 58.2 percent of original size [2021-11-12 22:41:24,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 239 treesize of output 367 [2021-11-12 22:41:31,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:31,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:32,823 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:41:32,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:41:35,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:35,816 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:35,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183245803] [2021-11-12 22:41:35,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183245803] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:41:35,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1622748460] [2021-11-12 22:41:35,816 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 22:41:35,816 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:41:35,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:41:35,817 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:41:35,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2021-11-12 22:41:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:36,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 22:41:36,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:37,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:41:37,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:38,634 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:41:38,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:41:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:41:41,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1622748460] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:41:41,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824746358] [2021-11-12 22:41:41,395 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 22:41:41,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:41:41,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:41,396 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:41:41,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-12 22:41:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:41,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-12 22:41:41,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:42,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:42,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:44,166 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:41:44,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:41:47,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:41:47,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824746358] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:41:47,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 22:41:47,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8, 7, 7, 11] total 39 [2021-11-12 22:41:47,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475487083] [2021-11-12 22:41:47,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:47,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:41:47,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:47,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:41:47,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1321, Unknown=1, NotChecked=0, Total=1560 [2021-11-12 22:41:47,061 INFO L87 Difference]: Start difference. First operand 1099 states and 3590 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 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 22:41:51,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:51,909 INFO L93 Difference]: Finished difference Result 2366 states and 7749 transitions. [2021-11-12 22:41:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:41:51,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-12 22:41:51,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:51,920 INFO L225 Difference]: With dead ends: 2366 [2021-11-12 22:41:51,920 INFO L226 Difference]: Without dead ends: 2233 [2021-11-12 22:41:51,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=362, Invalid=2087, Unknown=1, NotChecked=0, Total=2450 [2021-11-12 22:41:51,922 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 231 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2274.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.21ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2589.34ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:51,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 0 Invalid, 510 Unknown, 0 Unchecked, 3.21ms Time], IncrementalHoareTripleChecker [30 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2589.34ms Time] [2021-11-12 22:41:51,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2021-11-12 22:41:51,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 1119. [2021-11-12 22:41:51,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1118 states have (on average 3.2737030411449015) internal successors, (3660), 1118 states have internal predecessors, (3660), 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 22:41:51,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 3660 transitions. [2021-11-12 22:41:51,994 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 3660 transitions. Word has length 27 [2021-11-12 22:41:51,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:51,995 INFO L470 AbstractCegarLoop]: Abstraction has 1119 states and 3660 transitions. [2021-11-12 22:41:51,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 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 22:41:51,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 3660 transitions. [2021-11-12 22:41:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:41:51,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:51,999 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] [2021-11-12 22:41:52,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:52,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:52,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:52,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:41:52,615 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:41:52,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:52,616 INFO L85 PathProgramCache]: Analyzing trace with hash 30053663, now seen corresponding path program 8 times [2021-11-12 22:41:52,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:52,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683547137] [2021-11-12 22:41:52,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:41:52,617 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:52,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:52,617 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:52,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-12 22:41:52,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:41:52,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:41:52,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:41:52,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:53,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:41:53,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:54,901 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:41:54,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:41:56,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:41:56,144 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:56,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683547137] [2021-11-12 22:41:56,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683547137] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:56,144 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:56,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-11-12 22:41:56,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206711409] [2021-11-12 22:41:56,145 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:56,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:41:56,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:56,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:41:56,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:41:56,145 INFO L87 Difference]: Start difference. First operand 1119 states and 3660 transitions. Second operand has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:57,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:57,863 INFO L93 Difference]: Finished difference Result 1227 states and 3839 transitions. [2021-11-12 22:41:57,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 22:41:57,864 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-12 22:41:57,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:57,866 INFO L225 Difference]: With dead ends: 1227 [2021-11-12 22:41:57,867 INFO L226 Difference]: Without dead ends: 995 [2021-11-12 22:41:57,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:41:57,868 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 166 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1109.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.37ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 1262.17ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:57,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 0 Invalid, 432 Unknown, 0 Unchecked, 2.37ms Time], IncrementalHoareTripleChecker [15 Valid, 416 Invalid, 0 Unknown, 1 Unchecked, 1262.17ms Time] [2021-11-12 22:41:57,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2021-11-12 22:41:57,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 935. [2021-11-12 22:41:57,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 934 states have (on average 3.392933618843683) internal successors, (3169), 934 states have internal predecessors, (3169), 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 22:41:57,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 3169 transitions. [2021-11-12 22:41:57,898 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 3169 transitions. Word has length 27 [2021-11-12 22:41:57,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:57,899 INFO L470 AbstractCegarLoop]: Abstraction has 935 states and 3169 transitions. [2021-11-12 22:41:57,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:57,899 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 3169 transitions. [2021-11-12 22:41:57,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:41:57,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:57,903 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] [2021-11-12 22:41:57,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:58,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:58,117 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:41:58,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:58,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1309965453, now seen corresponding path program 1 times [2021-11-12 22:41:58,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:58,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017210300] [2021-11-12 22:41:58,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:58,118 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:58,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:58,119 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:58,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-12 22:41:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:58,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:41:58,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:58,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:41:58,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:59,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:41:59,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:59,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017210300] [2021-11-12 22:41:59,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017210300] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:41:59,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2100675609] [2021-11-12 22:41:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:59,343 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:41:59,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:41:59,344 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:41:59,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2021-11-12 22:41:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:59,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:41:59,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:00,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:42:00,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:42:00,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2100675609] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:42:00,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821566199] [2021-11-12 22:42:00,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:00,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:42:00,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:42:00,701 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:42:00,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-12 22:42:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:00,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:42:00,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:01,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:42:01,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:01,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:42:01,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821566199] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:42:01,821 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:42:01,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8, 8, 9, 8] total 29 [2021-11-12 22:42:01,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327008006] [2021-11-12 22:42:01,822 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:42:01,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-12 22:42:01,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:01,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-12 22:42:01,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2021-11-12 22:42:01,824 INFO L87 Difference]: Start difference. First operand 935 states and 3169 transitions. Second operand has 29 states, 29 states have (on average 3.8275862068965516) internal successors, (111), 29 states have internal predecessors, (111), 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 22:42:06,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:06,961 INFO L93 Difference]: Finished difference Result 4060 states and 13559 transitions. [2021-11-12 22:42:06,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-12 22:42:06,962 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.8275862068965516) internal successors, (111), 29 states have internal predecessors, (111), 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 28 [2021-11-12 22:42:06,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:06,987 INFO L225 Difference]: With dead ends: 4060 [2021-11-12 22:42:06,987 INFO L226 Difference]: Without dead ends: 4056 [2021-11-12 22:42:06,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=585, Invalid=1485, Unknown=0, NotChecked=0, Total=2070 [2021-11-12 22:42:06,988 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 730 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2957.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.49ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 597 IncrementalHoareTripleChecker+Unchecked, 3329.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:06,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 0 Invalid, 1740 Unknown, 0 Unchecked, 7.49ms Time], IncrementalHoareTripleChecker [32 Valid, 1111 Invalid, 0 Unknown, 597 Unchecked, 3329.55ms Time] [2021-11-12 22:42:06,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4056 states. [2021-11-12 22:42:07,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4056 to 1787. [2021-11-12 22:42:07,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1787 states, 1786 states have (on average 3.4204927211646137) internal successors, (6109), 1786 states have internal predecessors, (6109), 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 22:42:07,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 6109 transitions. [2021-11-12 22:42:07,060 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 6109 transitions. Word has length 28 [2021-11-12 22:42:07,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:07,061 INFO L470 AbstractCegarLoop]: Abstraction has 1787 states and 6109 transitions. [2021-11-12 22:42:07,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.8275862068965516) internal successors, (111), 29 states have internal predecessors, (111), 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 22:42:07,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 6109 transitions. [2021-11-12 22:42:07,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:42:07,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:07,066 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] [2021-11-12 22:42:07,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:07,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:07,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (36)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:07,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:42:07,673 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:42:07,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:07,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1402135583, now seen corresponding path program 2 times [2021-11-12 22:42:07,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:07,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868148561] [2021-11-12 22:42:07,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:42:07,674 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:07,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:07,675 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:07,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-12 22:42:07,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:42:07,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:42:07,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-12 22:42:07,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:08,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:42:08,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:10,255 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:42:10,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:42:11,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:42:11,862 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:11,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [868148561] [2021-11-12 22:42:11,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [868148561] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:42:11,863 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:42:11,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 17 [2021-11-12 22:42:11,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279872088] [2021-11-12 22:42:11,863 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:11,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 22:42:11,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:11,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 22:42:11,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:42:11,864 INFO L87 Difference]: Start difference. First operand 1787 states and 6109 transitions. Second operand has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 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 22:42:16,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:16,634 INFO L93 Difference]: Finished difference Result 4687 states and 16959 transitions. [2021-11-12 22:42:16,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-12 22:42:16,635 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 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 28 [2021-11-12 22:42:16,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:16,646 INFO L225 Difference]: With dead ends: 4687 [2021-11-12 22:42:16,646 INFO L226 Difference]: Without dead ends: 4555 [2021-11-12 22:42:16,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=376, Invalid=814, Unknown=0, NotChecked=0, Total=1190 [2021-11-12 22:42:16,647 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 438 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2655.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.14ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 3043.06ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:16,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 0 Invalid, 875 Unknown, 0 Unchecked, 5.14ms Time], IncrementalHoareTripleChecker [42 Valid, 805 Invalid, 0 Unknown, 28 Unchecked, 3043.06ms Time] [2021-11-12 22:42:16,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4555 states. [2021-11-12 22:42:16,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4555 to 1674. [2021-11-12 22:42:16,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 1673 states have (on average 3.371787208607292) internal successors, (5641), 1673 states have internal predecessors, (5641), 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 22:42:16,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 5641 transitions. [2021-11-12 22:42:16,724 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 5641 transitions. Word has length 28 [2021-11-12 22:42:16,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:16,724 INFO L470 AbstractCegarLoop]: Abstraction has 1674 states and 5641 transitions. [2021-11-12 22:42:16,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 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 22:42:16,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 5641 transitions. [2021-11-12 22:42:16,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:42:16,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:16,730 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] [2021-11-12 22:42:16,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:16,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:16,943 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:42:16,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:16,944 INFO L85 PathProgramCache]: Analyzing trace with hash -111620163, now seen corresponding path program 3 times [2021-11-12 22:42:16,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:16,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087232792] [2021-11-12 22:42:16,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 22:42:16,944 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:16,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:16,945 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:16,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-12 22:42:17,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-12 22:42:17,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:42:17,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-12 22:42:17,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:17,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:42:17,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:19,265 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:42:19,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:42:22,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:42:22,224 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:22,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087232792] [2021-11-12 22:42:22,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087232792] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:42:22,224 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:42:22,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 17 [2021-11-12 22:42:22,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201582116] [2021-11-12 22:42:22,225 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:22,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 22:42:22,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:22,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 22:42:22,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:42:22,226 INFO L87 Difference]: Start difference. First operand 1674 states and 5641 transitions. Second operand has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 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 22:42:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:25,604 INFO L93 Difference]: Finished difference Result 3403 states and 11369 transitions. [2021-11-12 22:42:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 22:42:25,605 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 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 28 [2021-11-12 22:42:25,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:25,612 INFO L225 Difference]: With dead ends: 3403 [2021-11-12 22:42:25,612 INFO L226 Difference]: Without dead ends: 3281 [2021-11-12 22:42:25,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=235, Invalid=521, Unknown=0, NotChecked=0, Total=756 [2021-11-12 22:42:25,614 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 374 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2215.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.50ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 117 IncrementalHoareTripleChecker+Unchecked, 2533.53ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:25,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 0 Invalid, 878 Unknown, 0 Unchecked, 4.50ms Time], IncrementalHoareTripleChecker [23 Valid, 738 Invalid, 0 Unknown, 117 Unchecked, 2533.53ms Time] [2021-11-12 22:42:25,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2021-11-12 22:42:25,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 1634. [2021-11-12 22:42:25,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1633 states have (on average 3.378444580526638) internal successors, (5517), 1633 states have internal predecessors, (5517), 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 22:42:25,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 5517 transitions. [2021-11-12 22:42:25,671 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 5517 transitions. Word has length 28 [2021-11-12 22:42:25,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:25,672 INFO L470 AbstractCegarLoop]: Abstraction has 1634 states and 5517 transitions. [2021-11-12 22:42:25,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 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 22:42:25,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 5517 transitions. [2021-11-12 22:42:25,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:42:25,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:25,677 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] [2021-11-12 22:42:25,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:25,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:25,886 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:42:25,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:25,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1178146181, now seen corresponding path program 4 times [2021-11-12 22:42:25,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:25,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814123900] [2021-11-12 22:42:25,886 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:42:25,886 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:25,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:25,887 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:25,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-12 22:42:26,073 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:42:26,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:42:26,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:42:26,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:26,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:42:26,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:27,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:42:27,131 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:27,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814123900] [2021-11-12 22:42:27,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814123900] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:42:27,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [483000707] [2021-11-12 22:42:27,132 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:42:27,132 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:42:27,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:42:27,133 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:42:27,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2021-11-12 22:42:27,318 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:42:27,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:42:27,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:42:27,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:27,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:42:27,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:28,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:42:28,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [483000707] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:42:28,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296661644] [2021-11-12 22:42:28,611 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:42:28,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:42:28,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:42:28,614 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:42:28,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-11-12 22:42:28,704 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:42:28,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:42:28,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:42:28,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:29,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:42:29,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:42:29,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296661644] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:42:29,706 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:42:29,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8, 8, 9, 8] total 29 [2021-11-12 22:42:29,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292000161] [2021-11-12 22:42:29,706 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:42:29,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-12 22:42:29,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:29,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-12 22:42:29,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2021-11-12 22:42:29,708 INFO L87 Difference]: Start difference. First operand 1634 states and 5517 transitions. Second operand has 29 states, 29 states have (on average 3.8275862068965516) internal successors, (111), 29 states have internal predecessors, (111), 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 22:42:36,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:36,440 INFO L93 Difference]: Finished difference Result 4127 states and 13709 transitions. [2021-11-12 22:42:36,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-12 22:42:36,442 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.8275862068965516) internal successors, (111), 29 states have internal predecessors, (111), 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 28 [2021-11-12 22:42:36,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:36,450 INFO L225 Difference]: With dead ends: 4127 [2021-11-12 22:42:36,450 INFO L226 Difference]: Without dead ends: 4002 [2021-11-12 22:42:36,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 137 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=820, Invalid=2486, Unknown=0, NotChecked=0, Total=3306 [2021-11-12 22:42:36,452 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 919 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3159.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.74ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1234 IncrementalHoareTripleChecker+Unchecked, 3540.38ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:36,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [919 Valid, 0 Invalid, 2491 Unknown, 0 Unchecked, 9.74ms Time], IncrementalHoareTripleChecker [61 Valid, 1196 Invalid, 0 Unknown, 1234 Unchecked, 3540.38ms Time] [2021-11-12 22:42:36,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2021-11-12 22:42:36,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 1543. [2021-11-12 22:42:36,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1542 states have (on average 3.3385214007782102) internal successors, (5148), 1542 states have internal predecessors, (5148), 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 22:42:36,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 5148 transitions. [2021-11-12 22:42:36,510 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 5148 transitions. Word has length 28 [2021-11-12 22:42:36,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:36,510 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 5148 transitions. [2021-11-12 22:42:36,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.8275862068965516) internal successors, (111), 29 states have internal predecessors, (111), 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 22:42:36,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 5148 transitions. [2021-11-12 22:42:36,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-12 22:42:36,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:36,515 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] [2021-11-12 22:42:36,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:36,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:36,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:37,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:37,118 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:42:37,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:37,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1249610160, now seen corresponding path program 5 times [2021-11-12 22:42:37,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:37,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184579838] [2021-11-12 22:42:37,119 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 22:42:37,120 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:37,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:37,121 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:37,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-12 22:42:37,278 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-12 22:42:37,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:42:37,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-12 22:42:37,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:42:37,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:39,110 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:42:39,110 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:39,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184579838] [2021-11-12 22:42:39,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184579838] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:42:39,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [144813600] [2021-11-12 22:42:39,111 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 22:42:39,111 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:42:39,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:42:39,116 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:42:39,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2021-11-12 22:42:41,261 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-12 22:42:41,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:42:41,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:42:41,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:42,354 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:42:42,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:43,406 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:42:43,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [144813600] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:42:43,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564289088] [2021-11-12 22:42:43,406 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 22:42:43,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:42:43,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:42:43,407 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:42:43,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-11-12 22:42:46,371 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-12 22:42:46,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:42:46,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 22:42:46,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:47,371 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 22:42:47,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 22:42:48,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564289088] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:42:48,800 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:42:48,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 7, 7] total 51 [2021-11-12 22:42:48,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767247391] [2021-11-12 22:42:48,800 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:42:48,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-11-12 22:42:48,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:48,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-11-12 22:42:48,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=589, Invalid=2063, Unknown=0, NotChecked=0, Total=2652 [2021-11-12 22:42:48,802 INFO L87 Difference]: Start difference. First operand 1543 states and 5148 transitions. Second operand has 52 states, 52 states have (on average 2.326923076923077) internal successors, (121), 51 states have internal predecessors, (121), 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 22:43:15,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:15,957 INFO L93 Difference]: Finished difference Result 4847 states and 16666 transitions. [2021-11-12 22:43:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-12 22:43:15,958 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.326923076923077) internal successors, (121), 51 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-12 22:43:15,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:15,983 INFO L225 Difference]: With dead ends: 4847 [2021-11-12 22:43:15,983 INFO L226 Difference]: Without dead ends: 4321 [2021-11-12 22:43:15,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1610 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=1255, Invalid=4907, Unknown=0, NotChecked=0, Total=6162 [2021-11-12 22:43:15,986 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 811 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 2925 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14469.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.99ms SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 2925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 263 IncrementalHoareTripleChecker+Unchecked, 15602.29ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:15,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 0 Invalid, 3449 Unknown, 0 Unchecked, 16.99ms Time], IncrementalHoareTripleChecker [261 Valid, 2925 Invalid, 0 Unknown, 263 Unchecked, 15602.29ms Time] [2021-11-12 22:43:15,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4321 states. [2021-11-12 22:43:16,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4321 to 1456. [2021-11-12 22:43:16,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.3422680412371135) internal successors, (4863), 1455 states have internal predecessors, (4863), 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 22:43:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 4863 transitions. [2021-11-12 22:43:16,039 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 4863 transitions. Word has length 29 [2021-11-12 22:43:16,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:16,039 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 4863 transitions. [2021-11-12 22:43:16,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.326923076923077) internal successors, (121), 51 states have internal predecessors, (121), 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 22:43:16,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 4863 transitions. [2021-11-12 22:43:16,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 22:43:16,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:16,044 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] [2021-11-12 22:43:16,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:16,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Ended with exit code 0 [2021-11-12 22:43:16,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (44)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:16,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:43:16,672 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:43:16,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:16,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1474248378, now seen corresponding path program 1 times [2021-11-12 22:43:16,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:16,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329564] [2021-11-12 22:43:16,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:16,673 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:16,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:16,674 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:16,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-12 22:43:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:16,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-12 22:43:16,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:17,493 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:43:17,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:18,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:43:18,146 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:18,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329564] [2021-11-12 22:43:18,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329564] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:43:18,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1397008491] [2021-11-12 22:43:18,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:18,147 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:43:18,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:43:18,148 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:43:18,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2021-11-12 22:43:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:18,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:43:18,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:19,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:43:19,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:19,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:43:19,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1397008491] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:43:19,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843680996] [2021-11-12 22:43:19,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:19,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:43:19,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:43:19,941 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:43:19,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-11-12 22:43:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:20,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:43:20,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:20,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:43:20,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:21,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:43:21,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843680996] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:43:21,942 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:43:21,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7, 7, 9, 10] total 32 [2021-11-12 22:43:21,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092006365] [2021-11-12 22:43:21,943 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:43:21,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-12 22:43:21,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:21,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-12 22:43:21,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=860, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 22:43:21,944 INFO L87 Difference]: Start difference. First operand 1456 states and 4863 transitions. Second operand has 33 states, 32 states have (on average 3.8125) internal successors, (122), 33 states have internal predecessors, (122), 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 22:43:37,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:37,862 INFO L93 Difference]: Finished difference Result 9716 states and 35123 transitions. [2021-11-12 22:43:37,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-11-12 22:43:37,863 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.8125) internal successors, (122), 33 states have internal predecessors, (122), 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 30 [2021-11-12 22:43:37,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:37,887 INFO L225 Difference]: With dead ends: 9716 [2021-11-12 22:43:37,887 INFO L226 Difference]: Without dead ends: 9263 [2021-11-12 22:43:37,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 161 SyntacticMatches, 6 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3864 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=2378, Invalid=9178, Unknown=0, NotChecked=0, Total=11556 [2021-11-12 22:43:37,891 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2556 mSDsluCounter, 2953 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5050.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2556 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.69ms SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3834 IncrementalHoareTripleChecker+Unchecked, 5749.88ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:37,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2556 Valid, 0 Invalid, 5602 Unknown, 0 Unchecked, 17.69ms Time], IncrementalHoareTripleChecker [114 Valid, 1654 Invalid, 0 Unknown, 3834 Unchecked, 5749.88ms Time] [2021-11-12 22:43:37,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9263 states. [2021-11-12 22:43:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9263 to 2363. [2021-11-12 22:43:38,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2362 states have (on average 3.5821337849280273) internal successors, (8461), 2362 states have internal predecessors, (8461), 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 22:43:38,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 8461 transitions. [2021-11-12 22:43:38,070 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 8461 transitions. Word has length 30 [2021-11-12 22:43:38,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:38,070 INFO L470 AbstractCegarLoop]: Abstraction has 2363 states and 8461 transitions. [2021-11-12 22:43:38,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.8125) internal successors, (122), 33 states have internal predecessors, (122), 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 22:43:38,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 8461 transitions. [2021-11-12 22:43:38,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 22:43:38,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:38,078 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] [2021-11-12 22:43:38,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:38,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2021-11-12 22:43:38,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:38,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:43:38,699 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:43:38,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:38,699 INFO L85 PathProgramCache]: Analyzing trace with hash 864855816, now seen corresponding path program 2 times [2021-11-12 22:43:38,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:38,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885843216] [2021-11-12 22:43:38,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:43:38,700 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:38,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:38,701 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:38,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-12 22:43:38,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:43:38,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:43:38,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-12 22:43:38,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:40,508 INFO L354 Elim1Store]: treesize reduction 156, result has 58.2 percent of original size [2021-11-12 22:43:40,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 219 treesize of output 347 [2021-11-12 22:43:48,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:43:48,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:50,623 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-11-12 22:43:50,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 335 treesize of output 395 [2021-11-12 22:43:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:43:52,703 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:52,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885843216] [2021-11-12 22:43:52,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885843216] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:43:52,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1363959260] [2021-11-12 22:43:52,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:43:52,703 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:43:52,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:43:52,704 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:43:52,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2021-11-12 22:43:53,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:43:53,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:43:53,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-12 22:43:53,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:54,349 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:43:54,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:55,843 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:43:55,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1363959260] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:43:55,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798466178] [2021-11-12 22:43:55,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:43:55,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:43:55,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:43:55,845 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:43:55,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-11-12 22:43:55,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:43:55,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:43:56,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:43:56,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:57,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:43:57,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:57,862 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:43:57,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798466178] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:43:57,862 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:43:57,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10, 10, 9, 10] total 46 [2021-11-12 22:43:57,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6493679] [2021-11-12 22:43:57,863 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:43:57,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-12 22:43:57,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:57,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-12 22:43:57,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=1805, Unknown=1, NotChecked=0, Total=2162 [2021-11-12 22:43:57,865 INFO L87 Difference]: Start difference. First operand 2363 states and 8461 transitions. Second operand has 47 states, 46 states have (on average 3.0217391304347827) internal successors, (139), 47 states have internal predecessors, (139), 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 22:44:30,808 WARN L227 SmtUtils]: Spent 8.42s on a formula simplification. DAG size of input: 79 DAG size of output: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:44:56,062 WARN L227 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 85 DAG size of output: 78 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:45:25,912 WARN L227 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 83 DAG size of output: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:46:09,969 WARN L227 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 80 DAG size of output: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:46:44,519 WARN L227 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 76 DAG size of output: 69 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:46:51,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:46:51,167 INFO L93 Difference]: Finished difference Result 9076 states and 32461 transitions. [2021-11-12 22:46:51,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-11-12 22:46:51,167 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 3.0217391304347827) internal successors, (139), 47 states have internal predecessors, (139), 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 30 [2021-11-12 22:46:51,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:46:51,189 INFO L225 Difference]: With dead ends: 9076 [2021-11-12 22:46:51,190 INFO L226 Difference]: Without dead ends: 8879 [2021-11-12 22:46:51,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 157 SyntacticMatches, 10 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11818 ImplicationChecksByTransitivity, 171.3s TimeCoverageRelationStatistics Valid=6915, Invalid=23157, Unknown=30, NotChecked=0, Total=30102 [2021-11-12 22:46:51,192 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3326 mSDsluCounter, 4901 mSDsCounter, 0 mSdLazyCounter, 2449 mSolverCounterSat, 607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6895.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3326 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.23ms SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 2449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7210 IncrementalHoareTripleChecker+Unchecked, 7851.87ms IncrementalHoareTripleChecker+Time [2021-11-12 22:46:51,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3326 Valid, 0 Invalid, 10266 Unknown, 0 Unchecked, 29.23ms Time], IncrementalHoareTripleChecker [607 Valid, 2449 Invalid, 0 Unknown, 7210 Unchecked, 7851.87ms Time] [2021-11-12 22:46:51,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8879 states. [2021-11-12 22:46:51,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8879 to 1636. [2021-11-12 22:46:51,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1635 states have (on average 3.4152905198776757) internal successors, (5584), 1635 states have internal predecessors, (5584), 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 22:46:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 5584 transitions. [2021-11-12 22:46:51,314 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 5584 transitions. Word has length 30 [2021-11-12 22:46:51,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:46:51,314 INFO L470 AbstractCegarLoop]: Abstraction has 1636 states and 5584 transitions. [2021-11-12 22:46:51,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 3.0217391304347827) internal successors, (139), 47 states have internal predecessors, (139), 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 22:46:51,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 5584 transitions. [2021-11-12 22:46:51,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 22:46:51,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:46:51,319 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:46:51,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2021-11-12 22:46:51,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:51,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (49)] Ended with exit code 0 [2021-11-12 22:46:51,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:46:51,934 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:46:51,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:46:51,934 INFO L85 PathProgramCache]: Analyzing trace with hash 597451312, now seen corresponding path program 5 times [2021-11-12 22:46:51,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:46:51,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451010977] [2021-11-12 22:46:51,935 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 22:46:51,935 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:46:51,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:46:51,936 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:46:51,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-12 22:46:52,136 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:46:52,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:46:52,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-12 22:46:52,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:52,876 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:46:52,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:54,203 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:46:54,203 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:46:54,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451010977] [2021-11-12 22:46:54,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451010977] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:46:54,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1441840719] [2021-11-12 22:46:54,204 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 22:46:54,204 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:46:54,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:46:54,204 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:46:54,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2021-11-12 22:46:55,152 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:46:55,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:46:55,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 22:46:55,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:55,906 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:46:55,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:46:56,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1441840719] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:46:56,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235632647] [2021-11-12 22:46:56,934 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 22:46:56,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:46:56,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:46:56,935 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:46:56,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-11-12 22:46:57,427 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:46:57,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:46:57,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-12 22:46:57,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:57,910 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:46:57,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:58,582 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:46:58,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235632647] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:46:58,582 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:46:58,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 11, 9] total 40 [2021-11-12 22:46:58,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875336786] [2021-11-12 22:46:58,582 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:46:58,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-12 22:46:58,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:46:58,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-12 22:46:58,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=1216, Unknown=0, NotChecked=0, Total=1560 [2021-11-12 22:46:58,583 INFO L87 Difference]: Start difference. First operand 1636 states and 5584 transitions. Second operand has 40 states, 40 states have (on average 2.55) internal successors, (102), 40 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:47:15,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:47:15,964 INFO L93 Difference]: Finished difference Result 9016 states and 32220 transitions. [2021-11-12 22:47:15,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-12 22:47:15,965 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.55) internal successors, (102), 40 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-12 22:47:15,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:47:15,989 INFO L225 Difference]: With dead ends: 9016 [2021-11-12 22:47:15,989 INFO L226 Difference]: Without dead ends: 8646 [2021-11-12 22:47:15,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2582 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=1692, Invalid=6680, Unknown=0, NotChecked=0, Total=8372 [2021-11-12 22:47:15,991 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1202 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 2844 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9126.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.24ms SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 639 IncrementalHoareTripleChecker+Unchecked, 10263.65ms IncrementalHoareTripleChecker+Time [2021-11-12 22:47:15,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1202 Valid, 0 Invalid, 3579 Unknown, 0 Unchecked, 16.24ms Time], IncrementalHoareTripleChecker [96 Valid, 2844 Invalid, 0 Unknown, 639 Unchecked, 10263.65ms Time] [2021-11-12 22:47:16,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2021-11-12 22:47:16,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 1493. [2021-11-12 22:47:16,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1492 states have (on average 3.3760053619302948) internal successors, (5037), 1492 states have internal predecessors, (5037), 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 22:47:16,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 5037 transitions. [2021-11-12 22:47:16,106 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 5037 transitions. Word has length 30 [2021-11-12 22:47:16,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:47:16,106 INFO L470 AbstractCegarLoop]: Abstraction has 1493 states and 5037 transitions. [2021-11-12 22:47:16,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.55) internal successors, (102), 40 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:47:16,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 5037 transitions. [2021-11-12 22:47:16,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 22:47:16,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:47:16,109 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] [2021-11-12 22:47:16,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-12 22:47:16,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2021-11-12 22:47:16,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (53)] Forceful destruction successful, exit code 0 [2021-11-12 22:47:16,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:47:16,710 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:47:16,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:47:16,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1674720742, now seen corresponding path program 1 times [2021-11-12 22:47:16,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:47:16,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647036372] [2021-11-12 22:47:16,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:16,711 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:47:16,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:47:16,711 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:47:16,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a6034dc-3ebc-486a-9f87-0e5f0bc0c170/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-11-12 22:47:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:17,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-12 22:47:17,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:17,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:17,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:17,404 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 39 treesize of output 37 [2021-11-12 22:47:19,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:19,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:19,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:19,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:19,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:19,366 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:47:19,366 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:47:19,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:19,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:19,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:19,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:19,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:19,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:47:20,528 INFO L354 Elim1Store]: treesize reduction 1715, result has 5.4 percent of original size [2021-11-12 22:47:20,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 271 treesize of output 193 [2021-11-12 22:47:26,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:26,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:26,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:26,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:26,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:26,131 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:47:26,132 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:47:26,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:26,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:26,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:26,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:26,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:47:26,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:50:17,337 WARN L227 SmtUtils]: Spent 2.85m on a formula simplification. DAG size of input: 527 DAG size of output: 132 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 22:50:17,338 INFO L354 Elim1Store]: treesize reduction 2755, result has 12.6 percent of original size [2021-11-12 22:50:17,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 81 case distinctions, treesize of input 309 treesize of output 509