./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 881c8a19bc7d985c1c357993fa89c98038c14e3d30b81b5db0457e690440ac95 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:36:00,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:36:00,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:36:00,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:36:00,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:36:00,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:36:00,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:36:00,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:36:00,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:36:00,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:36:00,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:36:00,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:36:00,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:36:00,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:36:00,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:36:00,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:36:00,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:36:00,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:36:00,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:36:00,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:36:00,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:36:00,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:36:00,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:36:00,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:36:00,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:36:00,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:36:00,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:36:00,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:36:00,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:36:00,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:36:00,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:36:00,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:36:00,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:36:00,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:36:00,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:36:00,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:36:00,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:36:00,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:36:00,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:36:00,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:36:00,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:36:01,001 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:36:01,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:36:01,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:36:01,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:36:01,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:36:01,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:36:01,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:36:01,053 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:36:01,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:36:01,054 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:36:01,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:36:01,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:36:01,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:36:01,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:36:01,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:36:01,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:36:01,056 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:36:01,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:36:01,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:36:01,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:36:01,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:36:01,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:36:01,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:36:01,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:36:01,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:36:01,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:36:01,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:36:01,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:36:01,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:36:01,059 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:36:01,059 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:36:01,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:36:01,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:36:01,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881c8a19bc7d985c1c357993fa89c98038c14e3d30b81b5db0457e690440ac95 [2021-10-21 19:36:01,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:36:01,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:36:01,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:36:01,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:36:01,435 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:36:01,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c [2021-10-21 19:36:01,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/data/091c6f45f/3b1f774598634532ad9ec29d736284ca/FLAGde74aeee0 [2021-10-21 19:36:02,108 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:36:02,109 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c [2021-10-21 19:36:02,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/data/091c6f45f/3b1f774598634532ad9ec29d736284ca/FLAGde74aeee0 [2021-10-21 19:36:02,442 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/data/091c6f45f/3b1f774598634532ad9ec29d736284ca [2021-10-21 19:36:02,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:36:02,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:36:02,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:36:02,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:36:02,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:36:02,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f30c2af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02, skipping insertion in model container [2021-10-21 19:36:02,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:36:02,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:36:02,662 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_b79228d2-071d-44f0-bfc6-7ead292b393f/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c[576,589] [2021-10-21 19:36:02,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:36:02,716 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:36:02,730 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_b79228d2-071d-44f0-bfc6-7ead292b393f/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c[576,589] [2021-10-21 19:36:02,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:36:02,758 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:36:02,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02 WrapperNode [2021-10-21 19:36:02,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:36:02,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:36:02,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:36:02,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:36:02,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:36:02,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:36:02,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:36:02,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:36:02,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:36:02,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:36:02,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:36:02,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:36:02,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02" (1/1) ... [2021-10-21 19:36:02,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:36:02,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:02,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:02,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:36:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:36:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:36:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:36:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:36:03,368 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:36:03,378 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-21 19:36:03,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:03 BoogieIcfgContainer [2021-10-21 19:36:03,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:36:03,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:36:03,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:36:03,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:36:03,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:36:02" (1/3) ... [2021-10-21 19:36:03,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51413662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:36:03, skipping insertion in model container [2021-10-21 19:36:03,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:02" (2/3) ... [2021-10-21 19:36:03,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51413662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:36:03, skipping insertion in model container [2021-10-21 19:36:03,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:03" (3/3) ... [2021-10-21 19:36:03,399 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound10.c [2021-10-21 19:36:03,425 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:36:03,425 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-21 19:36:03,532 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:36:03,539 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:36:03,540 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-21 19:36:03,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 42 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:03,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:36:03,565 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:03,566 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:03,567 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:03,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:03,575 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-10-21 19:36:03,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:03,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047117302] [2021-10-21 19:36:03,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:03,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:03,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:03,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:03,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047117302] [2021-10-21 19:36:03,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047117302] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:36:03,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:36:03,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:36:03,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582501050] [2021-10-21 19:36:03,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:36:03,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:03,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:36:03,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:36:03,815 INFO L87 Difference]: Start difference. First operand has 43 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 42 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:03,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:03,848 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2021-10-21 19:36:03,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:36:03,849 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-21 19:36:03,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:03,861 INFO L225 Difference]: With dead ends: 83 [2021-10-21 19:36:03,862 INFO L226 Difference]: Without dead ends: 39 [2021-10-21 19:36:03,866 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:36:03,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-21 19:36:03,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-21 19:36:03,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.25) internal successors, (40), 38 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2021-10-21 19:36:03,904 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 11 [2021-10-21 19:36:03,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:03,905 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2021-10-21 19:36:03,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:03,906 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2021-10-21 19:36:03,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:36:03,907 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:03,907 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:03,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:36:03,908 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:03,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:03,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-10-21 19:36:03,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:03,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053416380] [2021-10-21 19:36:03,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:03,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:03,961 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:03,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [681604916] [2021-10-21 19:36:03,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:03,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:03,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:03,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:03,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:36:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:04,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 19:36:04,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:04,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:04,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:04,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053416380] [2021-10-21 19:36:04,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:04,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681604916] [2021-10-21 19:36:04,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681604916] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:36:04,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:36:04,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 19:36:04,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520121696] [2021-10-21 19:36:04,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:36:04,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:04,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:36:04,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:36:04,611 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:04,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:04,923 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2021-10-21 19:36:04,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:36:04,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-21 19:36:04,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:04,925 INFO L225 Difference]: With dead ends: 52 [2021-10-21 19:36:04,925 INFO L226 Difference]: Without dead ends: 50 [2021-10-21 19:36:04,927 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 265.0ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:36:04,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-21 19:36:04,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2021-10-21 19:36:04,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 40 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2021-10-21 19:36:04,936 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 11 [2021-10-21 19:36:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:04,937 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2021-10-21 19:36:04,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2021-10-21 19:36:04,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 19:36:04,938 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:04,938 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:04,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:05,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:05,166 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:05,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:05,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2021-10-21 19:36:05,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:05,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514649913] [2021-10-21 19:36:05,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:05,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:05,193 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:05,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [175464246] [2021-10-21 19:36:05,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:05,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:05,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:05,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:05,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:36:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:05,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 19:36:05,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:05,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:05,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:05,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514649913] [2021-10-21 19:36:05,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:05,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175464246] [2021-10-21 19:36:05,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175464246] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:36:05,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:36:05,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 19:36:05,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276264541] [2021-10-21 19:36:05,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:36:05,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:05,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:36:05,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:36:05,663 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:05,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:05,953 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2021-10-21 19:36:05,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:36:05,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-21 19:36:05,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:05,959 INFO L225 Difference]: With dead ends: 69 [2021-10-21 19:36:05,960 INFO L226 Difference]: Without dead ends: 61 [2021-10-21 19:36:05,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 221.1ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:36:05,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-21 19:36:05,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2021-10-21 19:36:05,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:05,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2021-10-21 19:36:05,985 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 13 [2021-10-21 19:36:05,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:05,986 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2021-10-21 19:36:05,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:05,987 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2021-10-21 19:36:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:36:05,988 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:05,988 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:06,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:06,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-21 19:36:06,214 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:06,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:06,214 INFO L82 PathProgramCache]: Analyzing trace with hash 916732292, now seen corresponding path program 1 times [2021-10-21 19:36:06,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:06,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019700117] [2021-10-21 19:36:06,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:06,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:06,239 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:06,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984309948] [2021-10-21 19:36:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:06,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:06,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:06,248 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:06,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:36:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:06,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:36:06,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:06,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:06,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019700117] [2021-10-21 19:36:06,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:06,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984309948] [2021-10-21 19:36:06,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984309948] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:36:06,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:36:06,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:36:06,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901976247] [2021-10-21 19:36:06,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:36:06,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:06,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:36:06,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:36:06,434 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:06,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:06,549 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2021-10-21 19:36:06,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:36:06,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-21 19:36:06,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:06,552 INFO L225 Difference]: With dead ends: 95 [2021-10-21 19:36:06,552 INFO L226 Difference]: Without dead ends: 89 [2021-10-21 19:36:06,552 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:36:06,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-21 19:36:06,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 72. [2021-10-21 19:36:06,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 71 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:06,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2021-10-21 19:36:06,572 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 16 [2021-10-21 19:36:06,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:06,573 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2021-10-21 19:36:06,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:06,575 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2021-10-21 19:36:06,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 19:36:06,576 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:06,577 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:06,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:06,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:06,797 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:06,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:06,798 INFO L82 PathProgramCache]: Analyzing trace with hash 2015957290, now seen corresponding path program 1 times [2021-10-21 19:36:06,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:06,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628829390] [2021-10-21 19:36:06,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:06,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:06,818 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:06,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569094283] [2021-10-21 19:36:06,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:06,819 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:06,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:06,820 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:06,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 19:36:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:06,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:36:06,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:07,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:07,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:07,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628829390] [2021-10-21 19:36:07,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:07,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569094283] [2021-10-21 19:36:07,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569094283] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:36:07,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:36:07,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:36:07,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478952574] [2021-10-21 19:36:07,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:36:07,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:07,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:36:07,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:36:07,142 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:07,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:07,275 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2021-10-21 19:36:07,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:36:07,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-21 19:36:07,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:07,279 INFO L225 Difference]: With dead ends: 72 [2021-10-21 19:36:07,279 INFO L226 Difference]: Without dead ends: 70 [2021-10-21 19:36:07,280 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 77.1ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:36:07,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-21 19:36:07,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-10-21 19:36:07,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 64 states have (on average 1.203125) internal successors, (77), 69 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:07,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2021-10-21 19:36:07,314 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 20 [2021-10-21 19:36:07,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:07,314 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2021-10-21 19:36:07,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:07,315 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2021-10-21 19:36:07,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:36:07,316 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:07,317 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:07,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:07,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:07,535 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:07,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:07,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1552659725, now seen corresponding path program 1 times [2021-10-21 19:36:07,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:07,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592088623] [2021-10-21 19:36:07,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:07,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:07,569 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:07,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1613568741] [2021-10-21 19:36:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:07,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:07,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:07,573 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:07,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 19:36:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:07,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 19:36:07,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:07,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:07,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:07,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592088623] [2021-10-21 19:36:07,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:07,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613568741] [2021-10-21 19:36:07,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613568741] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:36:07,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:36:07,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-21 19:36:07,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846092082] [2021-10-21 19:36:07,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:36:07,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:07,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:36:07,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:36:07,925 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:08,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:08,222 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2021-10-21 19:36:08,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:36:08,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-21 19:36:08,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:08,224 INFO L225 Difference]: With dead ends: 123 [2021-10-21 19:36:08,225 INFO L226 Difference]: Without dead ends: 117 [2021-10-21 19:36:08,225 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 160.5ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:36:08,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-21 19:36:08,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 88. [2021-10-21 19:36:08,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.1951219512195121) internal successors, (98), 87 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:08,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2021-10-21 19:36:08,239 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 25 [2021-10-21 19:36:08,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:08,240 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2021-10-21 19:36:08,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:08,240 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2021-10-21 19:36:08,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 19:36:08,241 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:08,241 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:08,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:08,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-21 19:36:08,457 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:08,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:08,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1755069467, now seen corresponding path program 1 times [2021-10-21 19:36:08,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:08,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672956577] [2021-10-21 19:36:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:08,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:08,485 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:08,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303905322] [2021-10-21 19:36:08,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:08,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:08,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:08,487 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:08,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 19:36:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:08,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 19:36:08,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:08,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:08,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:08,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672956577] [2021-10-21 19:36:08,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:08,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303905322] [2021-10-21 19:36:08,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303905322] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:36:08,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:36:08,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-21 19:36:08,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262059395] [2021-10-21 19:36:08,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:36:08,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:08,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:36:08,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:36:08,912 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:09,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:09,082 INFO L93 Difference]: Finished difference Result 140 states and 153 transitions. [2021-10-21 19:36:09,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:36:09,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 [2021-10-21 19:36:09,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:09,085 INFO L225 Difference]: With dead ends: 140 [2021-10-21 19:36:09,085 INFO L226 Difference]: Without dead ends: 132 [2021-10-21 19:36:09,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 47.5ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:36:09,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-21 19:36:09,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 101. [2021-10-21 19:36:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 95 states have (on average 1.1789473684210525) internal successors, (112), 100 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:09,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 112 transitions. [2021-10-21 19:36:09,112 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 112 transitions. Word has length 26 [2021-10-21 19:36:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:09,113 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 112 transitions. [2021-10-21 19:36:09,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:09,114 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 112 transitions. [2021-10-21 19:36:09,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-21 19:36:09,116 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:09,117 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:09,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:09,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:09,336 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:09,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:09,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1828677220, now seen corresponding path program 2 times [2021-10-21 19:36:09,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:09,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630832012] [2021-10-21 19:36:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:09,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:09,354 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:09,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1577985605] [2021-10-21 19:36:09,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:36:09,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:09,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:09,356 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:09,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 19:36:09,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:36:09,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:36:09,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 19:36:09,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:09,873 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:09,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:09,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630832012] [2021-10-21 19:36:09,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:09,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577985605] [2021-10-21 19:36:09,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577985605] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:36:09,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:36:09,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-21 19:36:09,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091053331] [2021-10-21 19:36:09,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:36:09,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:09,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:36:09,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:36:09,880 INFO L87 Difference]: Start difference. First operand 101 states and 112 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 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) [2021-10-21 19:36:10,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:10,331 INFO L93 Difference]: Finished difference Result 168 states and 181 transitions. [2021-10-21 19:36:10,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 19:36:10,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-21 19:36:10,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:10,342 INFO L225 Difference]: With dead ends: 168 [2021-10-21 19:36:10,342 INFO L226 Difference]: Without dead ends: 162 [2021-10-21 19:36:10,343 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 230.5ms TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-10-21 19:36:10,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-21 19:36:10,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 119. [2021-10-21 19:36:10,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 113 states have (on average 1.176991150442478) internal successors, (133), 118 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:10,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2021-10-21 19:36:10,363 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 34 [2021-10-21 19:36:10,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:10,364 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2021-10-21 19:36:10,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 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) [2021-10-21 19:36:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2021-10-21 19:36:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-21 19:36:10,375 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:10,376 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:10,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:10,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:10,597 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:10,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:10,598 INFO L82 PathProgramCache]: Analyzing trace with hash -797667638, now seen corresponding path program 1 times [2021-10-21 19:36:10,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:10,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147013227] [2021-10-21 19:36:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:10,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:10,616 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:10,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [358720840] [2021-10-21 19:36:10,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:10,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:10,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:10,618 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:10,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:36:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:10,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-21 19:36:10,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:11,434 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:11,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:11,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147013227] [2021-10-21 19:36:11,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:11,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358720840] [2021-10-21 19:36:11,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358720840] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:36:11,436 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:36:11,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-21 19:36:11,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572103647] [2021-10-21 19:36:11,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:36:11,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:11,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:36:11,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:36:11,438 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:11,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:11,783 INFO L93 Difference]: Finished difference Result 210 states and 234 transitions. [2021-10-21 19:36:11,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:36:11,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-21 19:36:11,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:11,785 INFO L225 Difference]: With dead ends: 210 [2021-10-21 19:36:11,786 INFO L226 Difference]: Without dead ends: 202 [2021-10-21 19:36:11,786 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 145.5ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:36:11,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-10-21 19:36:11,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 128. [2021-10-21 19:36:11,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 122 states have (on average 1.1721311475409837) internal successors, (143), 127 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:11,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 143 transitions. [2021-10-21 19:36:11,803 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 143 transitions. Word has length 35 [2021-10-21 19:36:11,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:11,804 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 143 transitions. [2021-10-21 19:36:11,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:11,804 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 143 transitions. [2021-10-21 19:36:11,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-21 19:36:11,805 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:11,805 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:11,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:12,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:12,030 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:12,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:12,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1158953764, now seen corresponding path program 2 times [2021-10-21 19:36:12,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:12,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499028235] [2021-10-21 19:36:12,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:12,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:12,046 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:12,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156420033] [2021-10-21 19:36:12,047 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:36:12,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:12,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:12,048 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:12,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 19:36:12,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:36:12,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:36:12,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:36:12,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:12,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:12,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499028235] [2021-10-21 19:36:12,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:12,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156420033] [2021-10-21 19:36:12,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156420033] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:36:12,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:36:12,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:36:12,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317891264] [2021-10-21 19:36:12,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:36:12,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:12,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:36:12,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:36:12,397 INFO L87 Difference]: Start difference. First operand 128 states and 143 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:12,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:12,481 INFO L93 Difference]: Finished difference Result 241 states and 268 transitions. [2021-10-21 19:36:12,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:36:12,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-21 19:36:12,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:12,484 INFO L225 Difference]: With dead ends: 241 [2021-10-21 19:36:12,484 INFO L226 Difference]: Without dead ends: 142 [2021-10-21 19:36:12,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.6ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:36:12,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-21 19:36:12,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2021-10-21 19:36:12,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 128 states have (on average 1.1640625) internal successors, (149), 133 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:12,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2021-10-21 19:36:12,501 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 39 [2021-10-21 19:36:12,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:12,502 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2021-10-21 19:36:12,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:12,502 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2021-10-21 19:36:12,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-21 19:36:12,503 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:12,503 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:12,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:12,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-21 19:36:12,725 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:12,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:12,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1020421613, now seen corresponding path program 3 times [2021-10-21 19:36:12,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:12,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635119716] [2021-10-21 19:36:12,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:12,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:12,762 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:12,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563027844] [2021-10-21 19:36:12,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:36:12,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:12,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:12,774 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:12,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 19:36:13,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-21 19:36:13,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:36:13,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 19:36:13,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:13,427 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-21 19:36:13,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:13,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635119716] [2021-10-21 19:36:13,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:13,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563027844] [2021-10-21 19:36:13,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563027844] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:36:13,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:36:13,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-21 19:36:13,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767294909] [2021-10-21 19:36:13,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:36:13,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:13,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:36:13,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:36:13,431 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 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) [2021-10-21 19:36:21,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:21,690 INFO L93 Difference]: Finished difference Result 142 states and 154 transitions. [2021-10-21 19:36:21,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:36:21,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 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 43 [2021-10-21 19:36:21,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:21,693 INFO L225 Difference]: With dead ends: 142 [2021-10-21 19:36:21,693 INFO L226 Difference]: Without dead ends: 136 [2021-10-21 19:36:21,694 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4187.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:36:21,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-10-21 19:36:21,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 87. [2021-10-21 19:36:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.119047619047619) internal successors, (94), 86 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 94 transitions. [2021-10-21 19:36:21,721 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 94 transitions. Word has length 43 [2021-10-21 19:36:21,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:21,722 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 94 transitions. [2021-10-21 19:36:21,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 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) [2021-10-21 19:36:21,723 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 94 transitions. [2021-10-21 19:36:21,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-21 19:36:21,724 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:21,724 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:21,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:21,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-21 19:36:21,945 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:21,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:21,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1074581755, now seen corresponding path program 2 times [2021-10-21 19:36:21,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:21,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139939884] [2021-10-21 19:36:21,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:21,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:21,963 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:21,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524214687] [2021-10-21 19:36:21,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:36:21,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:21,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:21,973 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:21,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-21 19:36:22,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:36:22,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:36:22,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-21 19:36:22,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:23,677 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:23,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:23,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139939884] [2021-10-21 19:36:23,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:23,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524214687] [2021-10-21 19:36:23,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524214687] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:36:23,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:36:23,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-10-21 19:36:23,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631568240] [2021-10-21 19:36:23,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-21 19:36:23,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:23,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 19:36:23,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:36:23,682 INFO L87 Difference]: Start difference. First operand 87 states and 94 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:24,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:24,501 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2021-10-21 19:36:24,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-21 19:36:24,502 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 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 44 [2021-10-21 19:36:24,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:24,503 INFO L225 Difference]: With dead ends: 143 [2021-10-21 19:36:24,504 INFO L226 Difference]: Without dead ends: 135 [2021-10-21 19:36:24,505 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 667.8ms TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2021-10-21 19:36:24,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-21 19:36:24,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 96. [2021-10-21 19:36:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 93 states have (on average 1.118279569892473) internal successors, (104), 95 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2021-10-21 19:36:24,526 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 44 [2021-10-21 19:36:24,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:24,527 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2021-10-21 19:36:24,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:24,527 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2021-10-21 19:36:24,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-21 19:36:24,528 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:24,528 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:24,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:24,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-21 19:36:24,757 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:24,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:24,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1128629901, now seen corresponding path program 3 times [2021-10-21 19:36:24,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:24,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581397773] [2021-10-21 19:36:24,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:24,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:24,779 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:24,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807601818] [2021-10-21 19:36:24,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:36:24,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:24,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:24,787 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:24,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-21 19:36:25,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-21 19:36:25,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:36:25,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-21 19:36:25,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:25,409 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-21 19:36:25,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:25,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581397773] [2021-10-21 19:36:25,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:25,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807601818] [2021-10-21 19:36:25,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807601818] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:36:25,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:36:25,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:36:25,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857236666] [2021-10-21 19:36:25,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:36:25,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:25,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:36:25,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:36:25,413 INFO L87 Difference]: Start difference. First operand 96 states and 104 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:25,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:25,634 INFO L93 Difference]: Finished difference Result 110 states and 115 transitions. [2021-10-21 19:36:25,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:36:25,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-10-21 19:36:25,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:25,636 INFO L225 Difference]: With dead ends: 110 [2021-10-21 19:36:25,637 INFO L226 Difference]: Without dead ends: 96 [2021-10-21 19:36:25,637 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 95.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:36:25,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-21 19:36:25,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 78. [2021-10-21 19:36:25,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 75 states have (on average 1.08) internal successors, (81), 77 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:25,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2021-10-21 19:36:25,659 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 48 [2021-10-21 19:36:25,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:25,660 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2021-10-21 19:36:25,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:25,660 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2021-10-21 19:36:25,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-21 19:36:25,662 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:25,662 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:25,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:25,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-21 19:36:25,890 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:25,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:25,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1934789142, now seen corresponding path program 4 times [2021-10-21 19:36:25,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:25,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132839068] [2021-10-21 19:36:25,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:25,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:25,928 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:25,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [215753562] [2021-10-21 19:36:25,929 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:36:25,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:25,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:25,931 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:25,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-21 19:36:26,315 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:36:26,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:36:26,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-21 19:36:26,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:29,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:29,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132839068] [2021-10-21 19:36:29,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:29,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215753562] [2021-10-21 19:36:29,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215753562] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:36:29,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:36:29,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-21 19:36:29,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486333780] [2021-10-21 19:36:29,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:36:29,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:29,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:36:29,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:36:29,125 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:31,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:31,043 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2021-10-21 19:36:31,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-21 19:36:31,044 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 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 53 [2021-10-21 19:36:31,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:31,045 INFO L225 Difference]: With dead ends: 133 [2021-10-21 19:36:31,045 INFO L226 Difference]: Without dead ends: 125 [2021-10-21 19:36:31,046 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 994.3ms TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-10-21 19:36:31,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-21 19:36:31,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 87. [2021-10-21 19:36:31,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.0833333333333333) internal successors, (91), 86 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:31,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2021-10-21 19:36:31,090 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 53 [2021-10-21 19:36:31,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:31,090 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2021-10-21 19:36:31,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:31,091 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2021-10-21 19:36:31,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-21 19:36:31,092 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:31,092 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:31,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:31,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-21 19:36:31,301 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:31,302 INFO L82 PathProgramCache]: Analyzing trace with hash -413997928, now seen corresponding path program 5 times [2021-10-21 19:36:31,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:31,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146489468] [2021-10-21 19:36:31,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:31,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:31,330 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:31,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457498016] [2021-10-21 19:36:31,331 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:36:31,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:31,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:31,332 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:31,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-21 19:36:31,761 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-21 19:36:31,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:36:31,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:36:31,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:32,025 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:32,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:32,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146489468] [2021-10-21 19:36:32,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:32,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457498016] [2021-10-21 19:36:32,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457498016] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:36:32,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:36:32,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-21 19:36:32,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470144703] [2021-10-21 19:36:32,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:36:32,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:32,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:36:32,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:36:32,029 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:32,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:32,256 INFO L93 Difference]: Finished difference Result 159 states and 165 transitions. [2021-10-21 19:36:32,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:36:32,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-10-21 19:36:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:32,258 INFO L225 Difference]: With dead ends: 159 [2021-10-21 19:36:32,258 INFO L226 Difference]: Without dead ends: 116 [2021-10-21 19:36:32,264 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 66.1ms TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:36:32,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-21 19:36:32,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 106. [2021-10-21 19:36:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 103 states have (on average 1.087378640776699) internal successors, (112), 105 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2021-10-21 19:36:32,297 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 57 [2021-10-21 19:36:32,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:32,299 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2021-10-21 19:36:32,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:32,299 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2021-10-21 19:36:32,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-21 19:36:32,300 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:32,300 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:32,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:32,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:32,515 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:32,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:32,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1860833829, now seen corresponding path program 6 times [2021-10-21 19:36:32,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:32,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472541078] [2021-10-21 19:36:32,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:32,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:32,543 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:32,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1358184300] [2021-10-21 19:36:32,549 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:36:32,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:32,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:32,551 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:32,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-21 19:36:33,020 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-10-21 19:36:33,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:36:33,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-21 19:36:33,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:33,586 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-10-21 19:36:33,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:33,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472541078] [2021-10-21 19:36:33,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:33,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358184300] [2021-10-21 19:36:33,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358184300] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:36:33,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:36:33,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-21 19:36:33,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346639983] [2021-10-21 19:36:33,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:36:33,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:33,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:36:33,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:36:33,590 INFO L87 Difference]: Start difference. First operand 106 states and 112 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) [2021-10-21 19:36:33,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:33,902 INFO L93 Difference]: Finished difference Result 125 states and 133 transitions. [2021-10-21 19:36:33,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:36:33,902 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 62 [2021-10-21 19:36:33,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:33,904 INFO L225 Difference]: With dead ends: 125 [2021-10-21 19:36:33,904 INFO L226 Difference]: Without dead ends: 110 [2021-10-21 19:36:33,904 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 188.1ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:36:33,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-21 19:36:33,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 81. [2021-10-21 19:36:33,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.05) internal successors, (84), 80 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:33,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 84 transitions. [2021-10-21 19:36:33,932 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 84 transitions. Word has length 62 [2021-10-21 19:36:33,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:33,933 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 84 transitions. [2021-10-21 19:36:33,933 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) [2021-10-21 19:36:33,933 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 84 transitions. [2021-10-21 19:36:33,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-21 19:36:33,934 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:33,934 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:33,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:34,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:34,149 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:34,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:34,150 INFO L82 PathProgramCache]: Analyzing trace with hash 300678153, now seen corresponding path program 7 times [2021-10-21 19:36:34,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:34,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214129092] [2021-10-21 19:36:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:34,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:34,176 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:34,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1754005703] [2021-10-21 19:36:34,179 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:36:34,180 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:34,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:34,181 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:34,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-21 19:36:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:34,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-21 19:36:34,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:36,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:36,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214129092] [2021-10-21 19:36:36,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:36,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754005703] [2021-10-21 19:36:36,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754005703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:36:36,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:36:36,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-10-21 19:36:36,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729162630] [2021-10-21 19:36:36,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-21 19:36:36,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:36,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-21 19:36:36,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:36:36,675 INFO L87 Difference]: Start difference. First operand 81 states and 84 transitions. Second operand has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:37,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:37,327 INFO L93 Difference]: Finished difference Result 158 states and 165 transitions. [2021-10-21 19:36:37,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-21 19:36:37,327 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 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 66 [2021-10-21 19:36:37,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:37,328 INFO L225 Difference]: With dead ends: 158 [2021-10-21 19:36:37,328 INFO L226 Difference]: Without dead ends: 93 [2021-10-21 19:36:37,329 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 473.6ms TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2021-10-21 19:36:37,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-21 19:36:37,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2021-10-21 19:36:37,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.0449438202247192) internal successors, (93), 89 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) [2021-10-21 19:36:37,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions. [2021-10-21 19:36:37,355 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 66 [2021-10-21 19:36:37,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:37,355 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions. [2021-10-21 19:36:37,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:37,356 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions. [2021-10-21 19:36:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-21 19:36:37,356 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:37,357 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:37,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:37,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-21 19:36:37,571 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-21 19:36:37,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:37,571 INFO L82 PathProgramCache]: Analyzing trace with hash 822588344, now seen corresponding path program 8 times [2021-10-21 19:36:37,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:37,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181070043] [2021-10-21 19:36:37,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:37,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:37,619 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:36:37,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770509459] [2021-10-21 19:36:37,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:36:37,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:36:37,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:37,624 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:36:37,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-21 19:36:38,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:36:38,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:36:38,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-21 19:36:38,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:40,924 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:40,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:40,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181070043] [2021-10-21 19:36:40,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:36:40,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770509459] [2021-10-21 19:36:40,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770509459] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:36:40,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:36:40,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-10-21 19:36:40,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162052025] [2021-10-21 19:36:40,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-21 19:36:40,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:40,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-21 19:36:40,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2021-10-21 19:36:40,928 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:42,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:42,424 INFO L93 Difference]: Finished difference Result 126 states and 131 transitions. [2021-10-21 19:36:42,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-21 19:36:42,426 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-10-21 19:36:42,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:36:42,427 INFO L225 Difference]: With dead ends: 126 [2021-10-21 19:36:42,427 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:36:42,428 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1336.0ms TimeCoverageRelationStatistics Valid=243, Invalid=879, Unknown=0, NotChecked=0, Total=1122 [2021-10-21 19:36:42,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:36:42,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:36:42,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:42,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:36:42,429 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2021-10-21 19:36:42,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:36:42,429 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:36:42,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:42,430 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:36:42,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:36:42,433 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:36:42,434 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:36:42,434 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:36:42,434 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:36:42,435 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:36:42,435 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:36:42,435 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:36:42,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:42,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-21 19:36:42,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:36:42,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:36:42,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:36:43,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:36:43,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:36:43,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:36:43,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:36:44,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:36:44,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:36:44,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:36:44,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:37:06,769 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:37:06,770 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-21 19:37:06,770 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-10-21 19:37:06,770 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2021-10-21 19:37:06,770 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:37:06,770 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:37:06,770 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:37:06,770 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-21 19:37:06,770 INFO L857 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-10-21 19:37:06,771 INFO L857 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2021-10-21 19:37:06,771 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:37:06,771 INFO L853 garLoopResultBuilder]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse23 (* 2 ULTIMATE.start_main_~y~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse7 (<= ULTIMATE.start_main_~y~0 10)) (.cse18 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (let ((.cse21 (* 4 ULTIMATE.start_main_~y~0)) (.cse9 (<= 1 ULTIMATE.start_main_~y~0)) (.cse22 (let ((.cse24 (<= 0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse2 .cse24 (= ULTIMATE.start_main_~b~0 .cse23) (= ULTIMATE.start_main_~a~0 2) .cse7) (and .cse0 .cse2 .cse24 (= ULTIMATE.start_main_~a~0 1) .cse7 .cse18))))) (let ((.cse17 (or (and .cse0 .cse2 (= ULTIMATE.start_main_~b~0 .cse21) (= ULTIMATE.start_main_~a~0 4) .cse9 .cse7) (and .cse9 .cse22))) (.cse20 (* 8 ULTIMATE.start_main_~y~0))) (let ((.cse4 (< ULTIMATE.start_main_~x~0 .cse20)) (.cse13 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (.cse11 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse16 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~r~0))) (.cse10 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0)) (.cse12 (<= 0 ULTIMATE.start_main_~x~0)) (.cse15 (= (+ ULTIMATE.start_main_~r~0 .cse21) ULTIMATE.start_main_~x~0)) (.cse6 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))))) (.cse14 (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse9 .cse22 (= ULTIMATE.start_main_~q~0 1) .cse18) (and .cse17 (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse23)) (<= .cse23 ULTIMATE.start_main_~x~0)))) (.cse3 (<= ULTIMATE.start_main_~x~0 10)) (.cse8 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse5 (<= (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)) ULTIMATE.start_main_~y~0))) (or (let ((.cse1 (* 6 ULTIMATE.start_main_~y~0))) (and .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse1)) .cse2 (<= .cse1 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 6) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8)) (and .cse0 .cse2 (<= 0 ULTIMATE.start_main_~r~0) .cse9 .cse3 .cse5 .cse6 (= ULTIMATE.start_main_~q~0 10) .cse7 .cse8 (exists ((aux_div_ULTIMATE.start_main_~b~0_36 Int)) (and (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* aux_div_ULTIMATE.start_main_~b~0_36 2) (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2)) (<= (+ ULTIMATE.start_main_~y~0 aux_div_ULTIMATE.start_main_~b~0_36) 0)))) (and .cse0 .cse9 .cse10 .cse11 .cse3 .cse6 .cse7 .cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (and .cse13 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse14) (and .cse0 .cse2 .cse15 .cse16 .cse9 .cse10 .cse3 .cse4 .cse6 .cse7 .cse12 .cse8) (and .cse17 .cse13 .cse11 .cse3 .cse12 .cse18) (and .cse0 .cse2 (= ULTIMATE.start_main_~q~0 8) .cse16 .cse9 .cse10 .cse3 .cse6 .cse7 .cse12 .cse8) (and (< (div (+ (- 1) (* ULTIMATE.start_main_~r~0 (- 1))) (- 2)) (+ ULTIMATE.start_main_~y~0 1)) (or (let ((.cse19 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse19) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse19 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse2 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse3 (= (mod .cse19 (- 2)) 0) .cse6 .cse7 .cse8 (<= .cse20 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse20) ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~q~0 4) .cse0 (<= .cse21 ULTIMATE.start_main_~x~0) .cse2 .cse15 .cse3 .cse6 .cse7 .cse8) (and .cse14 .cse3 .cse8)) .cse5)))))) [2021-10-21 19:37:06,771 INFO L857 garLoopResultBuilder]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2021-10-21 19:37:06,772 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:37:06,772 INFO L853 garLoopResultBuilder]: At program point L47-2(lines 47 59) the Hoare annotation is: (let ((.cse18 (* 8 ULTIMATE.start_main_~y~0)) (.cse23 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))) (.cse20 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse4 (= ULTIMATE.start_main_~a~0 2)) (.cse22 (<= .cse20 ULTIMATE.start_main_~r~0)) (.cse8 (= ULTIMATE.start_main_~b~0 (* 2 .cse23))) (.cse11 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse13 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0))) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse5 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse19 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 0 ULTIMATE.start_main_~r~0)) (.cse3 (<= 1 ULTIMATE.start_main_~y~0)) (.cse16 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse21 (< ULTIMATE.start_main_~x~0 .cse18)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse17 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11) (and .cse13 (let ((.cse15 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (or (let ((.cse14 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse14) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse14 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse15 .cse16 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse7 (= (mod .cse14 (- 2)) 0) .cse17 (<= .cse18 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse18) ULTIMATE.start_main_~x~0))) (and (or (and (= ULTIMATE.start_main_~q~0 4) .cse0 .cse15 .cse19 .cse2 .cse7) (and (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse0 .cse15 .cse2 (= ULTIMATE.start_main_~q~0 1)) (and .cse0 .cse15 (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse20)) (<= .cse20 ULTIMATE.start_main_~x~0))) .cse7)) .cse16 .cse17)))) (and .cse0 .cse19 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse21 .cse22 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse3 .cse6 .cse7 .cse22 (= ULTIMATE.start_main_~y~0 .cse23) .cse8 .cse12 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 .cse13 .cse1 .cse2 .cse16 .cse6 .cse7 .cse9 .cse10 .cse17) (and .cse0 .cse1 .cse3 .cse16 .cse6 .cse7 .cse9 .cse10 .cse12 .cse17) (and .cse0 .cse1 .cse2 .cse3 .cse16 .cse5 .cse6 .cse7 .cse9 .cse17) (and .cse0 .cse19 .cse1 .cse2 .cse3 .cse16 .cse6 .cse7 .cse21 .cse9 .cse17)))) [2021-10-21 19:37:06,772 INFO L857 garLoopResultBuilder]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2021-10-21 19:37:06,772 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:37:06,772 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:37:06,773 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse18 (* 8 ULTIMATE.start_main_~y~0)) (.cse19 (* 4 ULTIMATE.start_main_~y~0)) (.cse9 (= ULTIMATE.start_main_~a~0 1)) (.cse12 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 1 ULTIMATE.start_main_~y~0)) (.cse6 (<= ULTIMATE.start_main_~y~0 10))) (let ((.cse8 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (.cse16 (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2 .cse9 (= ULTIMATE.start_main_~q~0 1) .cse6 .cse12) (let ((.cse21 (* 2 ULTIMATE.start_main_~y~0))) (and (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) .cse0 (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse21)) .cse2 (<= .cse21 ULTIMATE.start_main_~x~0) .cse6)))) (.cse4 (<= (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) (.cse20 (= (+ ULTIMATE.start_main_~r~0 .cse19) ULTIMATE.start_main_~x~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse13 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0)) (.cse10 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse3 (<= ULTIMATE.start_main_~x~0 10)) (.cse15 (< ULTIMATE.start_main_~x~0 .cse18)) (.cse5 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))))) (.cse11 (<= 0 ULTIMATE.start_main_~x~0)) (.cse7 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0))) (or (and .cse0 .cse1 (<= 0 ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~q~0 10) .cse6 .cse7 (exists ((aux_div_ULTIMATE.start_main_~b~0_36 Int)) (and (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* aux_div_ULTIMATE.start_main_~b~0_36 2) (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2)) (<= (+ ULTIMATE.start_main_~y~0 aux_div_ULTIMATE.start_main_~b~0_36) 0)))) (and .cse0 .cse8 .cse1 .cse2 .cse9 .cse10 .cse3 .cse6 .cse11 .cse12) (and .cse0 .cse1 (= ULTIMATE.start_main_~q~0 8) .cse2 .cse13 .cse10 .cse3 .cse5 .cse6 .cse11 .cse7) (let ((.cse14 (* 6 ULTIMATE.start_main_~y~0))) (and .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse14)) (<= .cse14 ULTIMATE.start_main_~x~0) .cse1 (= ULTIMATE.start_main_~q~0 6) .cse2 .cse3 .cse15 .cse4 .cse5 .cse6 .cse7)) (and .cse8 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse16) (and .cse0 .cse1 .cse2 .cse13 .cse10 .cse3 .cse5 .cse6 .cse11 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (and (< (div (+ (- 1) (* ULTIMATE.start_main_~r~0 (- 1))) (- 2)) (+ ULTIMATE.start_main_~y~0 1)) (or (let ((.cse17 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse17) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse17 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse1 .cse2 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse3 (= (mod .cse17 (- 2)) 0) .cse5 .cse6 .cse7 (<= .cse18 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse18) ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~q~0 4) .cse0 (<= .cse19 ULTIMATE.start_main_~x~0) .cse20 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7) (and .cse1 .cse3 .cse5 .cse7 .cse16)) .cse4) (and .cse0 .cse20 .cse1 .cse2 .cse13 .cse10 .cse3 .cse15 .cse5 .cse6 .cse11 .cse7)))) [2021-10-21 19:37:06,773 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:37:06,774 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 42 43) the Hoare annotation is: (let ((.cse15 (* 4 ULTIMATE.start_main_~y~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse16 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 1 ULTIMATE.start_main_~y~0)) (.cse10 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (<= ULTIMATE.start_main_~y~0 10)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (let ((.cse9 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (.cse12 (or (let ((.cse20 (* 2 ULTIMATE.start_main_~y~0))) (and (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) .cse0 .cse16 (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse20)) (<= .cse20 ULTIMATE.start_main_~x~0) .cse6)) (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse0 .cse16 .cse2 .cse10 (= ULTIMATE.start_main_~q~0 1) .cse6 .cse11))) (.cse13 (< (div (+ (- 1) (* ULTIMATE.start_main_~r~0 (- 1))) (- 2)) (+ ULTIMATE.start_main_~y~0 1))) (.cse14 (<= (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) (.cse17 (= (+ ULTIMATE.start_main_~r~0 .cse15) ULTIMATE.start_main_~x~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse4 (<= ULTIMATE.start_main_~x~0 10)) (.cse19 (* 8 ULTIMATE.start_main_~y~0)) (.cse5 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))))) (.cse7 (<= 0 ULTIMATE.start_main_~x~0)) (.cse8 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~q~0 8) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse9 .cse1 .cse2 .cse10 .cse3 .cse4 .cse6 .cse7 .cse11) (and .cse9 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse12) (and .cse13 .cse14 (or (and (= ULTIMATE.start_main_~q~0 4) .cse0 (<= .cse15 ULTIMATE.start_main_~x~0) .cse16 .cse17 .cse4 .cse5 .cse8) (and .cse4 .cse5 .cse12 .cse8) (let ((.cse18 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse18) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse18 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse16 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse4 (= (mod .cse18 (- 2)) 0) .cse5 .cse8 (<= .cse19 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse19) ULTIMATE.start_main_~x~0))))) (and .cse0 .cse13 .cse1 .cse2 .cse3 .cse4 .cse14 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0) .cse3 .cse4 .cse5 .cse6 .cse7 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (and .cse0 .cse17 .cse1 .cse2 .cse3 .cse4 (< ULTIMATE.start_main_~x~0 .cse19) .cse5 .cse6 .cse7 .cse8)))) [2021-10-21 19:37:06,774 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:37:06,775 INFO L853 garLoopResultBuilder]: At program point L15-8(lines 14 20) the Hoare annotation is: (let ((.cse19 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) (let ((.cse13 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~a~0 2)) (.cse15 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0))) (.cse17 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0)) (.cse8 (= ULTIMATE.start_main_~b~0 (* 2 .cse19))) (.cse11 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse18 (= ULTIMATE.start_main_~a~0 1)) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 0 ULTIMATE.start_main_~r~0)) (.cse3 (<= 1 ULTIMATE.start_main_~y~0)) (.cse14 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0))) (.cse5 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse16 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11) (and .cse0 .cse13 .cse1 .cse2 .cse3 .cse14 .cse6 .cse7 .cse15 .cse9 .cse16) (and .cse0 .cse13 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse15 .cse17 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) .cse1 .cse2 .cse18 .cse6 .cse7 .cse9 .cse10 .cse16) (and .cse0 .cse1 .cse3 (= ULTIMATE.start_main_~q~0 0) .cse7 .cse17 (= ULTIMATE.start_main_~y~0 .cse19) .cse8 .cse12 .cse11) (and .cse0 .cse1 .cse3 .cse18 .cse6 .cse7 .cse9 .cse10 .cse12 .cse16) (and .cse0 .cse1 .cse2 .cse3 .cse14 .cse5 .cse6 .cse7 .cse9 .cse16)))) [2021-10-21 19:37:06,775 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:37:06,775 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse19 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) (let ((.cse1 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse8 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0))) (.cse12 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= 0 ULTIMATE.start_main_~r~0)) (.cse16 (= ULTIMATE.start_main_~a~0 2)) (.cse18 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse17 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0)) (.cse13 (= ULTIMATE.start_main_~b~0 (* 2 .cse19))) (.cse15 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= 1 ULTIMATE.start_main_~y~0)) (.cse5 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse14 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse2 .cse3 .cse4 .cse6 .cse7 .cse13 .cse9 .cse10 .cse14 .cse15 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 .cse12 .cse1 .cse2 .cse3 .cse4 .cse16 .cse6 .cse7 .cse8 .cse17 .cse13 .cse9 .cse10 .cse15) (and .cse0 .cse12 .cse2 (= ULTIMATE.start_main_~a~0 4) .cse3 .cse4 .cse6 .cse7 .cse13 .cse9 .cse10 .cse14 .cse15) (and .cse0 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse11) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse18 .cse6 .cse7 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse2 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse3 .cse4 .cse16 .cse18 .cse6 .cse7 .cse13 .cse9 .cse10 .cse15) (and .cse0 .cse2 .cse4 (= ULTIMATE.start_main_~q~0 0) .cse7 .cse17 (= ULTIMATE.start_main_~y~0 .cse19) .cse13 .cse14 .cse15) (and .cse0 .cse2 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse14 .cse11)))) [2021-10-21 19:37:06,776 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:37:06,776 INFO L853 garLoopResultBuilder]: At program point L15-14(lines 52 53) the Hoare annotation is: (let ((.cse18 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) (let ((.cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse13 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~a~0 2)) (.cse15 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0))) (.cse17 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0)) (.cse8 (= ULTIMATE.start_main_~b~0 (* 2 .cse18))) (.cse11 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 0 ULTIMATE.start_main_~r~0)) (.cse3 (<= 1 ULTIMATE.start_main_~y~0)) (.cse14 (= ULTIMATE.start_main_~a~0 1)) (.cse5 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse16 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11) (and .cse0 .cse1 .cse13 .cse2 .cse3 .cse14 .cse6 .cse7 .cse15 .cse9 .cse10 .cse16) (and .cse0 .cse1 .cse3 .cse6 .cse7 .cse17 (= ULTIMATE.start_main_~y~0 .cse18) .cse8 .cse12 .cse11) (and .cse0 .cse1 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) .cse2 .cse3 .cse14 .cse6 .cse7 .cse9 .cse10 .cse16) (and .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 .cse1 .cse3 .cse14 .cse6 .cse7 .cse9 .cse10 .cse12 .cse16) (and .cse0 .cse1 .cse13 .cse2 .cse3 .cse4 .cse6 .cse7 .cse15 .cse17 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse14 .cse5 .cse6 .cse7 .cse9 .cse10 .cse16)))) [2021-10-21 19:37:06,777 INFO L860 garLoopResultBuilder]: At program point L65(lines 22 66) the Hoare annotation is: true [2021-10-21 19:37:06,777 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:37:06,777 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:37:06,777 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse8 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse9 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (let ((.cse1 (<= (* 2 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~r~0)) (.cse0 (let ((.cse11 (<= 0 ULTIMATE.start_main_~r~0)) (.cse12 (<= ULTIMATE.start_main_~y~0 10))) (or (and .cse7 .cse8 .cse11 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) .cse12 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (and .cse7 .cse8 .cse11 .cse9 .cse12 .cse6)))) (.cse2 (<= 1 ULTIMATE.start_main_~y~0)) (.cse3 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse4 (<= ULTIMATE.start_main_~x~0 10)) (.cse5 (<= 0 ULTIMATE.start_main_~x~0)) (.cse10 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0))) (or (and .cse0 .cse1 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0) .cse2 .cse3 .cse4 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0)) .cse5 .cse6) (and .cse7 .cse1 .cse8 .cse2 (= ULTIMATE.start_main_~q~0 0) .cse9 .cse4 .cse10 .cse6) (and .cse0 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse4 .cse5 .cse10) (and .cse0 .cse1 .cse2 .cse9 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2)) .cse3 .cse4 .cse5) (and .cse0 .cse2 (= ULTIMATE.start_main_~a~0 2) .cse3 .cse4 .cse5 .cse10)))) [2021-10-21 19:37:06,778 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-21 19:37:06,778 INFO L860 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-10-21 19:37:06,778 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:37:06,778 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:37:06,779 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:37:06,779 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:37:06,779 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:37:06,779 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:37:06,780 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:37:06,780 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-21 19:37:06,780 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:37:06,780 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 19:37:06,787 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:37:06,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:06,863 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:06,868 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:06,868 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:06,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:06,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:06,876 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:06,876 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:06,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:37:06 BoogieIcfgContainer [2021-10-21 19:37:06,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:37:06,880 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:37:06,880 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:37:06,880 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:37:06,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:03" (3/4) ... [2021-10-21 19:37:06,885 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:37:06,902 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-21 19:37:06,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:37:06,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:37:06,904 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:37:06,942 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((cond == 1 && x == r + 6 * y) && 1 <= cond) && 6 * y <= x) && q == 6) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || ((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0))) || ((((((((cond == 1 && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || ((r < y && b <= y) && (((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)))) || (((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && x == b + r) && 1 <= y) && a == q) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && r < y) && x == r + q * y) && x <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 <= cond) && q == 8) && x == b + r) && 1 <= y) && a == q) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((-1 + r * -1) / -2 < y + 1 && (((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || ((((((((q == 4 && cond == 1) && 4 * y <= x) && 1 <= cond) && r + 4 * y == x) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || (((((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)) && x <= 10) && a % -2 == 0))) && b * -1 / -2 <= y) [2021-10-21 19:37:06,943 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0)) || (((((((((cond == 1 && r < y) && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 == cond) && q == 8) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && x == r + 6 * y) && 6 * y <= x) && 1 == cond) && q == 6) && 1 <= y) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((r < y && b <= y) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10)))) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || (((-1 + r * -1) / -2 < y + 1 && ((((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 == cond) && 1 <= y) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || (((((((((q == 4 && cond == 1) && 4 * y <= x) && r + 4 * y == x) && 1 == cond) && 1 <= y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((((1 == cond && x <= 10) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10))))) && b * -1 / -2 <= y)) || (((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) [2021-10-21 19:37:06,981 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:37:06,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:37:06,984 INFO L168 Benchmark]: Toolchain (without parser) took 64535.82 ms. Allocated memory was 121.6 MB in the beginning and 211.8 MB in the end (delta: 90.2 MB). Free memory was 80.3 MB in the beginning and 129.3 MB in the end (delta: -49.0 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:37:06,984 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 121.6 MB. Free memory was 97.5 MB in the beginning and 97.3 MB in the end (delta: 132.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:37:06,985 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.86 ms. Allocated memory is still 121.6 MB. Free memory was 80.2 MB in the beginning and 96.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:37:06,986 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.84 ms. Allocated memory is still 121.6 MB. Free memory was 96.9 MB in the beginning and 95.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:37:06,986 INFO L168 Benchmark]: Boogie Preprocessor took 33.92 ms. Allocated memory is still 121.6 MB. Free memory was 95.4 MB in the beginning and 94.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:37:06,987 INFO L168 Benchmark]: RCFGBuilder took 536.27 ms. Allocated memory is still 121.6 MB. Free memory was 93.8 MB in the beginning and 82.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:37:06,987 INFO L168 Benchmark]: TraceAbstraction took 63496.07 ms. Allocated memory was 121.6 MB in the beginning and 211.8 MB in the end (delta: 90.2 MB). Free memory was 82.3 MB in the beginning and 134.6 MB in the end (delta: -52.3 MB). Peak memory consumption was 127.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:37:06,988 INFO L168 Benchmark]: Witness Printer took 101.90 ms. Allocated memory is still 211.8 MB. Free memory was 134.6 MB in the beginning and 129.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:37:06,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 121.6 MB. Free memory was 97.5 MB in the beginning and 97.3 MB in the end (delta: 132.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.86 ms. Allocated memory is still 121.6 MB. Free memory was 80.2 MB in the beginning and 96.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.84 ms. Allocated memory is still 121.6 MB. Free memory was 96.9 MB in the beginning and 95.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.92 ms. Allocated memory is still 121.6 MB. Free memory was 95.4 MB in the beginning and 94.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 536.27 ms. Allocated memory is still 121.6 MB. Free memory was 93.8 MB in the beginning and 82.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 63496.07 ms. Allocated memory was 121.6 MB in the beginning and 211.8 MB in the end (delta: 90.2 MB). Free memory was 82.3 MB in the beginning and 134.6 MB in the end (delta: -52.3 MB). Peak memory consumption was 127.7 MB. Max. memory is 16.1 GB. * Witness Printer took 101.90 ms. Allocated memory is still 211.8 MB. Free memory was 134.6 MB in the beginning and 129.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 63257.2ms, OverallIterations: 18, TraceHistogramMax: 6, EmptinessCheckTime: 38.9ms, AutomataDifference: 16286.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 24133.1ms, InitialAbstractionConstructionTime: 14.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 507 SDtfs, 1538 SDslu, 1264 SDs, 0 SdLazy, 2982 SolverSat, 500 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7806.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 754 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 9204.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=10, InterpolantAutomatonStates: 191, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 400.1ms AutomataMinimizationTime, 18 MinimizatonAttempts, 405 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 78 NumberOfFragments, 4255 HoareAnnotationTreeSize, 10 FomulaSimplifications, 869621 FormulaSimplificationTreeSizeReduction, 1735.5ms HoareSimplificationTime, 10 FomulaSimplificationsInter, 205960 FormulaSimplificationTreeSizeReductionInter, 22384.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 155.7ms SsaConstructionTime, 549.5ms SatisfiabilityAnalysisTime, 13118.0ms InterpolantComputationTime, 678 NumberOfCodeBlocks, 604 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 660 ConstructedInterpolants, 3 QuantifiedInterpolants, 8081 SizeOfPredicates, 128 NumberOfNonLiveVariables, 2211 ConjunctsInSsa, 349 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 207/563 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && 0 <= x) && b == y) || ((((((((((((cond == 1 && 1 <= cond) && 1 == cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || ((((((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || ((((((((((((cond == 1 && 1 <= cond) && 1 == cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || ((((((((((cond == 1 && r < 2 * b) && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((((((cond == 1 && 1 <= cond) && 1 == cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && q == 0) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && 2 * b <= r) && r + 4 * y == x) && 1 <= y) && x == r + q * y) && x <= 10) && x < 8 * y) && 0 <= x) && b == y) || ((((((((cond == 1 && 2 * b <= r) && 1 == cond) && 1 <= y) && q == 0) && a == 1) && x <= 10) && r == x) && b == y)) || ((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && a == 4) && 1 <= y) && x == r + q * y) && x <= 10) && 0 <= x) && r == x)) || (((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && 2 * b <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && 0 <= x)) || ((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && 0 <= x) && r == x) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (((((((((((((((((((cond == 1 && 1 <= cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((((cond == 1 && 1 <= cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && 0 <= x) && b == y)) || (((((((((cond == 1 && 1 <= cond) && 1 <= y) && x == r + q * y) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || ((((((((((cond == 1 && 1 <= cond) && r < 2 * b) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || (((((((((cond == 1 && 1 <= cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y)) || (((((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || ((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((((((((((cond == 1 && 1 == cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((((cond == 1 && 1 == cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || ((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && b == a * y) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && b == y)) || (((((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || (((((((((cond == 1 && r < 2 * b) && 1 == cond) && 0 <= r) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && q == 0) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && b == a * y) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && b == y) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((((((((((((((cond == 1 && 1 == cond) && q == 8) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((cond == 1 && r < y) && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((r < y && b <= y) && (((((((2 * r < x && cond == 1) && 1 <= cond) && q == 2) && x == r + 2 * y) && 2 * y <= x) && y <= 10) || (((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y)))) || (((-1 + r * -1) / -2 < y + 1 && b * -1 / -2 <= y) && (((((((((q == 4 && cond == 1) && 4 * y <= x) && 1 <= cond) && r + 4 * y == x) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) || (((x <= 10 && b == 2 * (y * (a * -1 / -2))) && (((((((2 * r < x && cond == 1) && 1 <= cond) && q == 2) && x == r + 2 * y) && 2 * y <= x) && y <= 10) || (((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y))) && a % -2 == 0)) || ((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x)))) || ((((((((((cond == 1 && (-1 + r * -1) / -2 < y + 1) && 1 == cond) && 1 <= y) && x == r + q * y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || ((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 1 <= y) && x == r + q * y) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((((((((((((((cond == 1 && 1 == cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((((cond == 1 && 1 == cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || (r < 2 * b && (((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && a == 1) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == y) && 8 * y <= x) && r + 8 * y == x) || ((((((((q == 4 && cond == 1) && 1 <= cond) && r + 4 * y == x) && 0 <= r) && x <= 10) || ((((((x == r + y && cond == 1) && 1 <= cond) && 0 <= r) && q == 1) || ((((cond == 1 && 1 <= cond) && q == 2) && x == r + 2 * y) && 2 * y <= x)) && x <= 10)) && a == 1) && b == y)))) || (((((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && x == r + q * y) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || (((((((((cond == 1 && r < 2 * b) && 1 == cond) && 0 <= r) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && b == y)) || ((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && b == y) - InvariantResult [Line: 38]: Loop Invariant [2021-10-21 19:37:07,029 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:07,029 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:07,031 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:07,032 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] Derived loop invariant: ((((((((((((((((cond == 1 && x == r + 6 * y) && 1 <= cond) && 6 * y <= x) && q == 6) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || ((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0))) || ((((((((cond == 1 && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || ((r < y && b <= y) && (((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)))) || (((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && x == b + r) && 1 <= y) && a == q) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && r < y) && x == r + q * y) && x <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 <= cond) && q == 8) && x == b + r) && 1 <= y) && a == q) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((-1 + r * -1) / -2 < y + 1 && (((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || ((((((((q == 4 && cond == 1) && 4 * y <= x) && 1 <= cond) && r + 4 * y == x) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || (((((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)) && x <= 10) && a % -2 == 0))) && b * -1 / -2 <= y) - InvariantResult [Line: 14]: Loop Invariant [2021-10-21 19:37:07,035 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:07,035 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:07,037 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-21 19:37:07,037 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] Derived loop invariant: ((((((((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0)) || (((((((((cond == 1 && r < y) && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 == cond) && q == 8) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && x == r + 6 * y) && 6 * y <= x) && 1 == cond) && q == 6) && 1 <= y) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((r < y && b <= y) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10)))) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || (((-1 + r * -1) / -2 < y + 1 && ((((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 == cond) && 1 <= y) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || (((((((((q == 4 && cond == 1) && 4 * y <= x) && r + 4 * y == x) && 1 == cond) && 1 <= y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((((1 == cond && x <= 10) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10))))) && b * -1 / -2 <= y)) || (((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-21 19:37:07,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79228d2-071d-44f0-bfc6-7ead292b393f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...