./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:20:56,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:20:56,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:20:56,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:20:56,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:20:56,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:20:56,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:20:56,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:20:56,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:20:56,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:20:56,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:20:56,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:20:56,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:20:56,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:20:56,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:20:56,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:20:56,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:20:56,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:20:56,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:20:56,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:20:56,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:20:56,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:20:56,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:20:56,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:20:56,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:20:56,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:20:56,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:20:56,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:20:56,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:20:56,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:20:56,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:20:56,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:20:56,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:20:56,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:20:56,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:20:56,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:20:56,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:20:56,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:20:56,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:20:56,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:20:56,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:20:56,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 19:20:56,936 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:20:56,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:20:56,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:20:56,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:20:56,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:20:56,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:20:56,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:20:56,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:20:56,943 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:20:56,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:20:56,943 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:20:56,944 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:20:56,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:20:56,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:20:56,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:20:56,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:20:56,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:20:56,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:20:56,945 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:20:56,945 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:20:56,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:20:56,945 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:20:56,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:20:56,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:20:56,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:20:56,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:20:56,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:20:56,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:20:56,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:20:56,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:20:56,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:20:56,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:20:56,946 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:20:56,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:20:56,946 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:20:56,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:20:56,947 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:20:56,947 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 [2022-12-13 19:20:57,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:20:57,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:20:57,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:20:57,164 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:20:57,165 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:20:57,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2022-12-13 19:20:59,875 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:21:00,087 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:21:00,088 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2022-12-13 19:21:00,097 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/data/56e34c303/8205d5c885f449a4a7d71bc12f378377/FLAGfc9aae174 [2022-12-13 19:21:00,110 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/data/56e34c303/8205d5c885f449a4a7d71bc12f378377 [2022-12-13 19:21:00,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:21:00,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:21:00,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:21:00,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:21:00,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:21:00,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730c3d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00, skipping insertion in model container [2022-12-13 19:21:00,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:21:00,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:21:00,417 WARN L237 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2022-12-13 19:21:00,475 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:21:00,482 WARN L237 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2022-12-13 19:21:00,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:21:00,499 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:21:00,518 WARN L237 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2022-12-13 19:21:00,549 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:21:00,554 WARN L237 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2022-12-13 19:21:00,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:21:00,583 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:21:00,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00 WrapperNode [2022-12-13 19:21:00,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:21:00,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:21:00,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:21:00,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:21:00,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,664 INFO L138 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1185 [2022-12-13 19:21:00,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:21:00,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:21:00,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:21:00,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:21:00,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,715 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:21:00,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:21:00,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:21:00,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:21:00,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (1/1) ... [2022-12-13 19:21:00,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:21:00,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:21:00,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:21:00,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:21:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 19:21:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 19:21:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 19:21:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:21:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 19:21:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 19:21:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 19:21:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:21:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 19:21:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:21:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-13 19:21:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 19:21:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:21:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:21:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:21:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:21:00,950 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:21:00,953 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:21:01,982 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:21:01,992 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:21:01,992 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-12-13 19:21:01,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:21:01 BoogieIcfgContainer [2022-12-13 19:21:01,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:21:01,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:21:01,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:21:02,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:21:02,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:21:00" (1/3) ... [2022-12-13 19:21:02,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e97d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:21:02, skipping insertion in model container [2022-12-13 19:21:02,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:21:00" (2/3) ... [2022-12-13 19:21:02,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e97d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:21:02, skipping insertion in model container [2022-12-13 19:21:02,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:21:01" (3/3) ... [2022-12-13 19:21:02,004 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-2.i [2022-12-13 19:21:02,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:21:02,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 19:21:02,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:21:02,067 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c2657d5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:21:02,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 19:21:02,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 222 states have (on average 1.7027027027027026) internal successors, (378), 235 states have internal predecessors, (378), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:21:02,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 19:21:02,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:21:02,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:21:02,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:21:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:21:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2022-12-13 19:21:02,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:21:02,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855152910] [2022-12-13 19:21:02,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:02,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:21:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:21:02,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:21:02,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855152910] [2022-12-13 19:21:02,220 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-13 19:21:02,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412454565] [2022-12-13 19:21:02,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:02,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:21:02,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:21:02,222 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:21:02,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:21:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:21:02,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 19:21:02,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:21:02,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:21:02,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:21:02,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412454565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:21:02,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:21:02,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:21:02,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830608412] [2022-12-13 19:21:02,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:21:02,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:21:02,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:21:02,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:21:02,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:21:02,408 INFO L87 Difference]: Start difference. First operand has 241 states, 222 states have (on average 1.7027027027027026) internal successors, (378), 235 states have internal predecessors, (378), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:21:02,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:21:02,444 INFO L93 Difference]: Finished difference Result 480 states and 791 transitions. [2022-12-13 19:21:02,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:21:02,446 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 19:21:02,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:21:02,452 INFO L225 Difference]: With dead ends: 480 [2022-12-13 19:21:02,453 INFO L226 Difference]: Without dead ends: 208 [2022-12-13 19:21:02,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:21:02,457 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:21:02,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:21:02,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-12-13 19:21:02,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2022-12-13 19:21:02,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 190 states have (on average 1.3473684210526315) internal successors, (256), 202 states have internal predecessors, (256), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:21:02,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 272 transitions. [2022-12-13 19:21:02,502 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 272 transitions. Word has length 7 [2022-12-13 19:21:02,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:21:02,503 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 272 transitions. [2022-12-13 19:21:02,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:21:02,503 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 272 transitions. [2022-12-13 19:21:02,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 19:21:02,503 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:21:02,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:21:02,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:21:02,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 19:21:02,706 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:21:02,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:21:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2022-12-13 19:21:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:21:02,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499746889] [2022-12-13 19:21:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:02,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:21:02,810 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:21:02,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910572133] [2022-12-13 19:21:02,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:02,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:21:02,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:21:02,818 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:21:02,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 19:21:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:21:02,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 19:21:02,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:21:03,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 19:21:03,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 19:21:03,048 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 19:21:03,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 19:21:03,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:21:03,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 19:21:03,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:21:03,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:21:03,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:21:03,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499746889] [2022-12-13 19:21:03,092 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:21:03,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910572133] [2022-12-13 19:21:03,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910572133] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:21:03,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:21:03,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:21:03,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027540562] [2022-12-13 19:21:03,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:21:03,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:21:03,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:21:03,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:21:03,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:21:03,095 INFO L87 Difference]: Start difference. First operand 208 states and 272 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:21:03,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:21:03,809 INFO L93 Difference]: Finished difference Result 346 states and 460 transitions. [2022-12-13 19:21:03,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:21:03,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 19:21:03,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:21:03,812 INFO L225 Difference]: With dead ends: 346 [2022-12-13 19:21:03,812 INFO L226 Difference]: Without dead ends: 344 [2022-12-13 19:21:03,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:21:03,813 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 208 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 19:21:03,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 838 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 19:21:03,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-12-13 19:21:03,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 214. [2022-12-13 19:21:03,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 196 states have (on average 1.3418367346938775) internal successors, (263), 208 states have internal predecessors, (263), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:21:03,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 279 transitions. [2022-12-13 19:21:03,825 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 279 transitions. Word has length 7 [2022-12-13 19:21:03,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:21:03,825 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 279 transitions. [2022-12-13 19:21:03,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:21:03,825 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 279 transitions. [2022-12-13 19:21:03,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 19:21:03,825 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:21:03,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:21:03,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 19:21:04,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:21:04,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:21:04,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:21:04,029 INFO L85 PathProgramCache]: Analyzing trace with hash -686726947, now seen corresponding path program 1 times [2022-12-13 19:21:04,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:21:04,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526784067] [2022-12-13 19:21:04,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:04,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:21:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:21:04,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:21:04,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:21:04,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526784067] [2022-12-13 19:21:04,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526784067] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:21:04,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:21:04,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:21:04,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396729611] [2022-12-13 19:21:04,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:21:04,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:21:04,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:21:04,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:21:04,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:21:04,168 INFO L87 Difference]: Start difference. First operand 214 states and 279 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:21:04,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:21:04,444 INFO L93 Difference]: Finished difference Result 418 states and 555 transitions. [2022-12-13 19:21:04,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:21:04,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-13 19:21:04,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:21:04,446 INFO L225 Difference]: With dead ends: 418 [2022-12-13 19:21:04,446 INFO L226 Difference]: Without dead ends: 310 [2022-12-13 19:21:04,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:21:04,447 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 120 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:21:04,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 700 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:21:04,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-12-13 19:21:04,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 214. [2022-12-13 19:21:04,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 196 states have (on average 1.336734693877551) internal successors, (262), 208 states have internal predecessors, (262), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:21:04,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 278 transitions. [2022-12-13 19:21:04,461 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 278 transitions. Word has length 10 [2022-12-13 19:21:04,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:21:04,461 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 278 transitions. [2022-12-13 19:21:04,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:21:04,461 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 278 transitions. [2022-12-13 19:21:04,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 19:21:04,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:21:04,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:21:04,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:21:04,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:21:04,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:21:04,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1818750011, now seen corresponding path program 1 times [2022-12-13 19:21:04,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:21:04,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357943884] [2022-12-13 19:21:04,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:04,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:21:04,555 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:21:04,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [973336806] [2022-12-13 19:21:04,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:04,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:21:04,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:21:04,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:21:04,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 19:21:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:21:05,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:21:05,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:21:05,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:21:05,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:21:05,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:21:05,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357943884] [2022-12-13 19:21:05,023 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:21:05,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973336806] [2022-12-13 19:21:05,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973336806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:21:05,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:21:05,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:21:05,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071985138] [2022-12-13 19:21:05,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:21:05,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:21:05,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:21:05,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:21:05,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:21:05,025 INFO L87 Difference]: Start difference. First operand 214 states and 278 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:21:05,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:21:05,085 INFO L93 Difference]: Finished difference Result 441 states and 579 transitions. [2022-12-13 19:21:05,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:21:05,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-12-13 19:21:05,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:21:05,087 INFO L225 Difference]: With dead ends: 441 [2022-12-13 19:21:05,087 INFO L226 Difference]: Without dead ends: 235 [2022-12-13 19:21:05,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:21:05,090 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 9 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:21:05,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 489 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:21:05,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-12-13 19:21:05,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 234. [2022-12-13 19:21:05,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 216 states have (on average 1.3055555555555556) internal successors, (282), 228 states have internal predecessors, (282), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:21:05,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 298 transitions. [2022-12-13 19:21:05,102 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 298 transitions. Word has length 57 [2022-12-13 19:21:05,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:21:05,103 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 298 transitions. [2022-12-13 19:21:05,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:21:05,103 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 298 transitions. [2022-12-13 19:21:05,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 19:21:05,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:21:05,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:21:05,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 19:21:05,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:21:05,307 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:21:05,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:21:05,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1309276921, now seen corresponding path program 1 times [2022-12-13 19:21:05,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:21:05,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576091319] [2022-12-13 19:21:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:05,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:21:05,446 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:21:05,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717881499] [2022-12-13 19:21:05,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:05,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:21:05,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:21:05,448 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:21:05,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 19:21:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:21:05,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:21:05,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:21:05,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:21:05,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:21:05,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:21:05,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576091319] [2022-12-13 19:21:05,920 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:21:05,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717881499] [2022-12-13 19:21:05,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717881499] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:21:05,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:21:05,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:21:05,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530786099] [2022-12-13 19:21:05,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:21:05,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:21:05,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:21:05,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:21:05,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:21:05,923 INFO L87 Difference]: Start difference. First operand 234 states and 298 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2022-12-13 19:21:05,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:21:05,983 INFO L93 Difference]: Finished difference Result 450 states and 578 transitions. [2022-12-13 19:21:05,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:21:05,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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 [2022-12-13 19:21:05,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:21:05,985 INFO L225 Difference]: With dead ends: 450 [2022-12-13 19:21:05,985 INFO L226 Difference]: Without dead ends: 224 [2022-12-13 19:21:05,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:21:05,987 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 244 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:21:05,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 521 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:21:05,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-12-13 19:21:05,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 220. [2022-12-13 19:21:05,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 202 states have (on average 1.2920792079207921) internal successors, (261), 214 states have internal predecessors, (261), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:21:05,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 277 transitions. [2022-12-13 19:21:05,998 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 277 transitions. Word has length 57 [2022-12-13 19:21:05,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:21:05,999 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 277 transitions. [2022-12-13 19:21:05,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2022-12-13 19:21:05,999 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 277 transitions. [2022-12-13 19:21:06,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 19:21:06,002 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:21:06,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:21:06,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 19:21:06,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:21:06,203 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:21:06,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:21:06,205 INFO L85 PathProgramCache]: Analyzing trace with hash 714659257, now seen corresponding path program 1 times [2022-12-13 19:21:06,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:21:06,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544054276] [2022-12-13 19:21:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:06,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:21:06,414 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:21:06,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952938315] [2022-12-13 19:21:06,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:06,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:21:06,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:21:06,415 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:21:06,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 19:21:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:21:06,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1526 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:21:06,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:21:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:21:07,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:21:07,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:21:07,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544054276] [2022-12-13 19:21:07,082 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:21:07,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952938315] [2022-12-13 19:21:07,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952938315] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:21:07,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:21:07,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:21:07,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701258620] [2022-12-13 19:21:07,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:21:07,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:21:07,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:21:07,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:21:07,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:21:07,084 INFO L87 Difference]: Start difference. First operand 220 states and 277 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:21:07,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:21:07,162 INFO L93 Difference]: Finished difference Result 560 states and 712 transitions. [2022-12-13 19:21:07,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:21:07,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-12-13 19:21:07,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:21:07,164 INFO L225 Difference]: With dead ends: 560 [2022-12-13 19:21:07,164 INFO L226 Difference]: Without dead ends: 348 [2022-12-13 19:21:07,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:21:07,166 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 119 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:21:07,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 572 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:21:07,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-12-13 19:21:07,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 326. [2022-12-13 19:21:07,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 308 states have (on average 1.2824675324675325) internal successors, (395), 320 states have internal predecessors, (395), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:21:07,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 411 transitions. [2022-12-13 19:21:07,179 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 411 transitions. Word has length 57 [2022-12-13 19:21:07,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:21:07,179 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 411 transitions. [2022-12-13 19:21:07,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:21:07,179 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 411 transitions. [2022-12-13 19:21:07,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-13 19:21:07,180 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:21:07,181 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:21:07,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 19:21:07,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 19:21:07,382 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:21:07,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:21:07,384 INFO L85 PathProgramCache]: Analyzing trace with hash -45488309, now seen corresponding path program 1 times [2022-12-13 19:21:07,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:21:07,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906076961] [2022-12-13 19:21:07,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:07,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:21:07,468 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 19:21:07,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [362892051] [2022-12-13 19:21:07,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:21:07,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:21:07,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:21:07,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:21:07,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 19:21:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:21:07,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 155 conjunts are in the unsatisfiable core [2022-12-13 19:21:07,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:21:07,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 19:21:07,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 19:21:07,923 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 19:21:07,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 19:21:07,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 19:21:08,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 19:21:08,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 19:21:08,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 19:21:08,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 19:21:08,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 19:21:08,418 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-12-13 19:21:08,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 30 [2022-12-13 19:21:08,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-13 19:21:08,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 19:21:20,064 INFO L217 Elim1Store]: Index analysis took 343 ms [2022-12-13 19:32:08,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:32:08,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906076961] [2022-12-13 19:32:08,722 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 19:32:08,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362892051] [2022-12-13 19:32:08,722 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-12-13 19:32:08,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 19:32:08,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 19:32:08,925 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 48049 column 7: canceled at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 48049 column 7: canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 53 more [2022-12-13 19:32:08,934 INFO L158 Benchmark]: Toolchain (without parser) took 668820.10ms. Allocated memory was 132.1MB in the beginning and 9.7GB in the end (delta: 9.6GB). Free memory was 95.3MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 8.9GB. Max. memory is 16.1GB. [2022-12-13 19:32:08,934 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 132.1MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:32:08,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.99ms. Allocated memory is still 132.1MB. Free memory was 95.3MB in the beginning and 61.7MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 19:32:08,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.02ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 61.7MB in the beginning and 125.2MB in the end (delta: -63.5MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-12-13 19:32:08,935 INFO L158 Benchmark]: Boogie Preprocessor took 58.08ms. Allocated memory is still 159.4MB. Free memory was 125.2MB in the beginning and 116.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 19:32:08,935 INFO L158 Benchmark]: RCFGBuilder took 1271.17ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 116.7MB in the beginning and 149.6MB in the end (delta: -32.8MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2022-12-13 19:32:08,936 INFO L158 Benchmark]: TraceAbstraction took 666935.74ms. Allocated memory was 192.9MB in the beginning and 9.7GB in the end (delta: 9.5GB). Free memory was 148.5MB in the beginning and 6.2GB in the end (delta: -6.0GB). Peak memory consumption was 8.9GB. Max. memory is 16.1GB. [2022-12-13 19:32:08,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 132.1MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.99ms. Allocated memory is still 132.1MB. Free memory was 95.3MB in the beginning and 61.7MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.02ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 61.7MB in the beginning and 125.2MB in the end (delta: -63.5MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.08ms. Allocated memory is still 159.4MB. Free memory was 125.2MB in the beginning and 116.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1271.17ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 116.7MB in the beginning and 149.6MB in the end (delta: -32.8MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. * TraceAbstraction took 666935.74ms. Allocated memory was 192.9MB in the beginning and 9.7GB in the end (delta: 9.5GB). Free memory was 148.5MB in the beginning and 6.2GB in the end (delta: -6.0GB). Peak memory consumption was 8.9GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 48049 column 7: canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 48049 column 7: canceled: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-13 19:32:09,144 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-12-13 19:32:09,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:32:10,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:32:10,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:32:10,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:32:10,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:32:10,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:32:10,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:32:10,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:32:10,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:32:10,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:32:10,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:32:10,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:32:10,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:32:10,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:32:10,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:32:10,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:32:10,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:32:10,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:32:10,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:32:10,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:32:10,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:32:10,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:32:10,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:32:10,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:32:10,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:32:10,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:32:10,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:32:10,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:32:10,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:32:10,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:32:10,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:32:10,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:32:10,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:32:10,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:32:10,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:32:11,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:32:11,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:32:11,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:32:11,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:32:11,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:32:11,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:32:11,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2022-12-13 19:32:11,022 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:32:11,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:32:11,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:32:11,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:32:11,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:32:11,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:32:11,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:32:11,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:32:11,024 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:32:11,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:32:11,025 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:32:11,025 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:32:11,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:32:11,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:32:11,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:32:11,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:32:11,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:32:11,025 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:32:11,025 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 19:32:11,026 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:32:11,026 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 19:32:11,026 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:32:11,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:32:11,026 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:32:11,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:32:11,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:32:11,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:32:11,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:32:11,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:32:11,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:32:11,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:32:11,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:32:11,027 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 19:32:11,027 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 19:32:11,027 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:32:11,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:32:11,028 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:32:11,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:32:11,028 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 19:32:11,028 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:32:11,028 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 [2022-12-13 19:32:11,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:32:11,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:32:11,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:32:11,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:32:11,280 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:32:11,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2022-12-13 19:32:13,848 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:32:14,106 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:32:14,107 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2022-12-13 19:32:14,120 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/data/ed667aaac/5f6c917fa947492e9e3e662658a93090/FLAG282f1db93 [2022-12-13 19:32:14,135 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/data/ed667aaac/5f6c917fa947492e9e3e662658a93090 [2022-12-13 19:32:14,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:32:14,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:32:14,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:32:14,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:32:14,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:32:14,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b6d13d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14, skipping insertion in model container [2022-12-13 19:32:14,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:32:14,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:32:14,448 WARN L237 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2022-12-13 19:32:14,527 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:32:14,533 WARN L237 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2022-12-13 19:32:14,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:32:14,554 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 19:32:14,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:32:14,572 WARN L237 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2022-12-13 19:32:14,600 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:32:14,605 WARN L237 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2022-12-13 19:32:14,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:32:14,614 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:32:14,637 WARN L237 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2022-12-13 19:32:14,661 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:32:14,665 WARN L237 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_cea470e2-5cc6-4b60-99fe-27df08e8a78c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2022-12-13 19:32:14,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:32:14,691 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:32:14,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14 WrapperNode [2022-12-13 19:32:14,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:32:14,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:32:14,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:32:14,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:32:14,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,768 INFO L138 Inliner]: procedures = 180, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1185 [2022-12-13 19:32:14,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:32:14,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:32:14,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:32:14,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:32:14,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,835 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:32:14,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:32:14,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:32:14,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:32:14,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (1/1) ... [2022-12-13 19:32:14,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:32:14,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:32:14,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:32:14,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:32:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-12-13 19:32:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 19:32:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 19:32:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 19:32:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 19:32:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 19:32:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 19:32:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:32:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 19:32:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:32:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-13 19:32:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 19:32:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:32:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 19:32:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 19:32:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:32:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:32:15,074 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:32:15,076 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:32:21,838 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:32:21,846 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:32:21,846 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-12-13 19:32:21,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:32:21 BoogieIcfgContainer [2022-12-13 19:32:21,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:32:21,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:32:21,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:32:21,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:32:21,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:32:14" (1/3) ... [2022-12-13 19:32:21,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad65367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:32:21, skipping insertion in model container [2022-12-13 19:32:21,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:32:14" (2/3) ... [2022-12-13 19:32:21,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad65367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:32:21, skipping insertion in model container [2022-12-13 19:32:21,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:32:21" (3/3) ... [2022-12-13 19:32:21,856 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-2.i [2022-12-13 19:32:21,874 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:32:21,874 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 19:32:21,924 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:32:21,930 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69d604b6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:32:21,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 19:32:21,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 222 states have (on average 1.7027027027027026) internal successors, (378), 235 states have internal predecessors, (378), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:32:21,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 19:32:21,941 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:21,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:21,942 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:21,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:21,946 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2022-12-13 19:32:21,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:21,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774096441] [2022-12-13 19:32:21,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:32:21,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:21,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:21,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:21,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 19:32:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:32:22,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 19:32:22,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:32:22,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:32:22,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:22,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774096441] [2022-12-13 19:32:22,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774096441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:32:22,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:32:22,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:32:22,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761274980] [2022-12-13 19:32:22,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:32:22,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:32:22,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:22,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:32:22,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:32:22,216 INFO L87 Difference]: Start difference. First operand has 241 states, 222 states have (on average 1.7027027027027026) internal successors, (378), 235 states have internal predecessors, (378), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:32:22,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:22,252 INFO L93 Difference]: Finished difference Result 477 states and 791 transitions. [2022-12-13 19:32:22,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:32:22,254 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 19:32:22,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:22,261 INFO L225 Difference]: With dead ends: 477 [2022-12-13 19:32:22,261 INFO L226 Difference]: Without dead ends: 205 [2022-12-13 19:32:22,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:32:22,266 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:22,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:32:22,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-12-13 19:32:22,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2022-12-13 19:32:22,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 190 states have (on average 1.331578947368421) internal successors, (253), 199 states have internal predecessors, (253), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:32:22,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 269 transitions. [2022-12-13 19:32:22,301 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 269 transitions. Word has length 7 [2022-12-13 19:32:22,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:22,301 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 269 transitions. [2022-12-13 19:32:22,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:32:22,302 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 269 transitions. [2022-12-13 19:32:22,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 19:32:22,302 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:22,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:22,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:32:22,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:22,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:22,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:22,506 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2022-12-13 19:32:22,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:22,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621265692] [2022-12-13 19:32:22,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:32:22,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:22,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:22,513 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:22,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 19:32:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:32:22,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 19:32:22,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:22,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-13 19:32:22,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2022-12-13 19:32:22,977 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 19:32:22,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-13 19:32:23,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:32:23,081 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:32:23,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 32 [2022-12-13 19:32:23,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:32:23,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:32:23,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:23,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621265692] [2022-12-13 19:32:23,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621265692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:32:23,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:32:23,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:32:23,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967445392] [2022-12-13 19:32:23,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:32:23,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:32:23,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:23,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:32:23,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:32:23,133 INFO L87 Difference]: Start difference. First operand 205 states and 269 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:32:28,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:32:30,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:32:34,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:34,439 INFO L93 Difference]: Finished difference Result 342 states and 456 transitions. [2022-12-13 19:32:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:32:34,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 19:32:34,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:34,441 INFO L225 Difference]: With dead ends: 342 [2022-12-13 19:32:34,441 INFO L226 Difference]: Without dead ends: 340 [2022-12-13 19:32:34,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:32:34,442 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 207 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:34,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1005 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 408 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2022-12-13 19:32:34,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-12-13 19:32:34,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 211. [2022-12-13 19:32:34,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 196 states have (on average 1.3265306122448979) internal successors, (260), 205 states have internal predecessors, (260), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:32:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 276 transitions. [2022-12-13 19:32:34,454 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 276 transitions. Word has length 7 [2022-12-13 19:32:34,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:34,454 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 276 transitions. [2022-12-13 19:32:34,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:32:34,455 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 276 transitions. [2022-12-13 19:32:34,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 19:32:34,455 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:34,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:34,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 19:32:34,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:34,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:34,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:34,659 INFO L85 PathProgramCache]: Analyzing trace with hash 186301925, now seen corresponding path program 1 times [2022-12-13 19:32:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:34,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144954020] [2022-12-13 19:32:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:32:34,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:34,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:34,664 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:34,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 19:32:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:32:34,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:32:34,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:34,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:32:34,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:32:34,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:34,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144954020] [2022-12-13 19:32:34,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144954020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:32:34,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:32:34,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:32:34,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298378692] [2022-12-13 19:32:34,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:32:34,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:32:34,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:34,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:32:34,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:32:34,846 INFO L87 Difference]: Start difference. First operand 211 states and 276 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-12-13 19:32:37,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:32:38,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:38,788 INFO L93 Difference]: Finished difference Result 519 states and 683 transitions. [2022-12-13 19:32:38,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:32:38,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2022-12-13 19:32:38,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:38,792 INFO L225 Difference]: With dead ends: 519 [2022-12-13 19:32:38,793 INFO L226 Difference]: Without dead ends: 314 [2022-12-13 19:32:38,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:32:38,794 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 143 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:38,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 721 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-13 19:32:38,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-12-13 19:32:38,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 312. [2022-12-13 19:32:38,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 297 states have (on average 1.3265993265993266) internal successors, (394), 306 states have internal predecessors, (394), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:32:38,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 410 transitions. [2022-12-13 19:32:38,806 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 410 transitions. Word has length 11 [2022-12-13 19:32:38,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:38,806 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 410 transitions. [2022-12-13 19:32:38,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-12-13 19:32:38,806 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 410 transitions. [2022-12-13 19:32:38,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 19:32:38,807 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:38,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:38,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 19:32:39,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:39,009 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:39,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:39,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1560991902, now seen corresponding path program 1 times [2022-12-13 19:32:39,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:39,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027524338] [2022-12-13 19:32:39,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:32:39,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:39,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:39,016 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:39,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 19:32:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:32:39,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:32:39,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:39,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:32:39,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:32:39,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:39,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027524338] [2022-12-13 19:32:39,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027524338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:32:39,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:32:39,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:32:39,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057210000] [2022-12-13 19:32:39,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:32:39,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:32:39,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:39,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:32:39,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:32:39,187 INFO L87 Difference]: Start difference. First operand 312 states and 410 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:32:39,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:39,294 INFO L93 Difference]: Finished difference Result 517 states and 690 transitions. [2022-12-13 19:32:39,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:32:39,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-12-13 19:32:39,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:39,296 INFO L225 Difference]: With dead ends: 517 [2022-12-13 19:32:39,296 INFO L226 Difference]: Without dead ends: 348 [2022-12-13 19:32:39,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:32:39,297 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 127 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:39,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 649 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:32:39,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-12-13 19:32:39,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 318. [2022-12-13 19:32:39,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 303 states have (on average 1.2673267326732673) internal successors, (384), 312 states have internal predecessors, (384), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:32:39,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 400 transitions. [2022-12-13 19:32:39,309 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 400 transitions. Word has length 51 [2022-12-13 19:32:39,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:39,309 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 400 transitions. [2022-12-13 19:32:39,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:32:39,309 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 400 transitions. [2022-12-13 19:32:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 19:32:39,310 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:39,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:39,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 19:32:39,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:39,511 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:39,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:39,512 INFO L85 PathProgramCache]: Analyzing trace with hash -497126544, now seen corresponding path program 1 times [2022-12-13 19:32:39,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:39,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [856606149] [2022-12-13 19:32:39,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:32:39,513 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:39,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:39,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:39,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 19:32:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:32:39,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:32:39,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:39,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:32:39,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:32:39,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:39,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [856606149] [2022-12-13 19:32:39,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [856606149] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:32:39,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:32:39,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:32:39,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903520702] [2022-12-13 19:32:39,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:32:39,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:32:39,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:39,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:32:39,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:32:39,751 INFO L87 Difference]: Start difference. First operand 318 states and 400 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:32:39,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:39,814 INFO L93 Difference]: Finished difference Result 509 states and 644 transitions. [2022-12-13 19:32:39,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:32:39,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-12-13 19:32:39,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:39,816 INFO L225 Difference]: With dead ends: 509 [2022-12-13 19:32:39,816 INFO L226 Difference]: Without dead ends: 334 [2022-12-13 19:32:39,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:32:39,817 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 98 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:39,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 649 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:32:39,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-12-13 19:32:39,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 306. [2022-12-13 19:32:39,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 291 states have (on average 1.2508591065292096) internal successors, (364), 300 states have internal predecessors, (364), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:32:39,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 380 transitions. [2022-12-13 19:32:39,829 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 380 transitions. Word has length 51 [2022-12-13 19:32:39,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:39,829 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 380 transitions. [2022-12-13 19:32:39,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:32:39,829 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 380 transitions. [2022-12-13 19:32:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 19:32:39,830 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:39,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:39,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 19:32:40,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:40,032 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:40,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:40,034 INFO L85 PathProgramCache]: Analyzing trace with hash 769115372, now seen corresponding path program 1 times [2022-12-13 19:32:40,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:40,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638526408] [2022-12-13 19:32:40,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:32:40,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:40,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:40,039 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:40,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 19:32:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:32:40,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:32:40,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:32:40,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:32:40,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:40,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638526408] [2022-12-13 19:32:40,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638526408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:32:40,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:32:40,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:32:40,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657182184] [2022-12-13 19:32:40,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:32:40,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:32:40,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:40,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:32:40,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:32:40,211 INFO L87 Difference]: Start difference. First operand 306 states and 380 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:32:40,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:40,271 INFO L93 Difference]: Finished difference Result 456 states and 557 transitions. [2022-12-13 19:32:40,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:32:40,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-12-13 19:32:40,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:40,272 INFO L225 Difference]: With dead ends: 456 [2022-12-13 19:32:40,272 INFO L226 Difference]: Without dead ends: 249 [2022-12-13 19:32:40,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:32:40,273 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 8 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:40,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 486 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:32:40,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-12-13 19:32:40,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-12-13 19:32:40,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 234 states have (on average 1.2521367521367521) internal successors, (293), 243 states have internal predecessors, (293), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:32:40,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 309 transitions. [2022-12-13 19:32:40,280 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 309 transitions. Word has length 51 [2022-12-13 19:32:40,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:40,280 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 309 transitions. [2022-12-13 19:32:40,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:32:40,280 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 309 transitions. [2022-12-13 19:32:40,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-13 19:32:40,284 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:40,284 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:40,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 19:32:40,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:40,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:40,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:40,486 INFO L85 PathProgramCache]: Analyzing trace with hash 581740986, now seen corresponding path program 1 times [2022-12-13 19:32:40,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:40,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327506026] [2022-12-13 19:32:40,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:32:40,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:40,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:40,490 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:40,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 19:32:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:32:40,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:32:40,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:32:41,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:32:41,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:41,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327506026] [2022-12-13 19:32:41,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327506026] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:32:41,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:32:41,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:32:41,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590039448] [2022-12-13 19:32:41,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:32:41,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:32:41,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:41,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:32:41,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:32:41,010 INFO L87 Difference]: Start difference. First operand 249 states and 309 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 19:32:41,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:41,098 INFO L93 Difference]: Finished difference Result 495 states and 621 transitions. [2022-12-13 19:32:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:32:41,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2022-12-13 19:32:41,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:41,099 INFO L225 Difference]: With dead ends: 495 [2022-12-13 19:32:41,099 INFO L226 Difference]: Without dead ends: 257 [2022-12-13 19:32:41,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:32:41,100 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 226 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:41,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 470 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:32:41,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-12-13 19:32:41,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2022-12-13 19:32:41,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 240 states have (on average 1.1791666666666667) internal successors, (283), 249 states have internal predecessors, (283), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:32:41,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 299 transitions. [2022-12-13 19:32:41,113 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 299 transitions. Word has length 73 [2022-12-13 19:32:41,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:41,114 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 299 transitions. [2022-12-13 19:32:41,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 19:32:41,114 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 299 transitions. [2022-12-13 19:32:41,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-13 19:32:41,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:41,115 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:41,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 19:32:41,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:41,317 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:41,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:41,319 INFO L85 PathProgramCache]: Analyzing trace with hash -288218520, now seen corresponding path program 1 times [2022-12-13 19:32:41,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:41,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747032573] [2022-12-13 19:32:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:32:41,321 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:41,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:41,324 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:41,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-13 19:32:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:32:41,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:32:41,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:41,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:32:41,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:32:41,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:41,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747032573] [2022-12-13 19:32:41,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747032573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:32:41,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:32:41,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:32:41,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449315167] [2022-12-13 19:32:41,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:32:41,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:32:41,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:41,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:32:41,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:32:41,959 INFO L87 Difference]: Start difference. First operand 255 states and 299 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 19:32:42,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:42,058 INFO L93 Difference]: Finished difference Result 464 states and 548 transitions. [2022-12-13 19:32:42,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:32:42,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2022-12-13 19:32:42,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:42,060 INFO L225 Difference]: With dead ends: 464 [2022-12-13 19:32:42,060 INFO L226 Difference]: Without dead ends: 243 [2022-12-13 19:32:42,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:32:42,060 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 195 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:42,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 656 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:32:42,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-12-13 19:32:42,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2022-12-13 19:32:42,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.1535087719298245) internal successors, (263), 237 states have internal predecessors, (263), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 19:32:42,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 279 transitions. [2022-12-13 19:32:42,067 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 279 transitions. Word has length 73 [2022-12-13 19:32:42,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:42,067 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 279 transitions. [2022-12-13 19:32:42,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 19:32:42,068 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 279 transitions. [2022-12-13 19:32:42,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-13 19:32:42,068 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:42,068 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:42,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-13 19:32:42,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:42,269 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:42,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:42,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1410137170, now seen corresponding path program 1 times [2022-12-13 19:32:42,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:42,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38715378] [2022-12-13 19:32:42,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:32:42,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:42,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:42,271 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:42,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 19:32:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:32:42,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:32:42,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:42,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:32:42,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:32:42,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:42,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38715378] [2022-12-13 19:32:42,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [38715378] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:32:42,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:32:42,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:32:42,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220840085] [2022-12-13 19:32:42,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:32:42,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:32:42,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:42,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:32:42,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:32:42,787 INFO L87 Difference]: Start difference. First operand 243 states and 279 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:32:42,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:42,828 INFO L93 Difference]: Finished difference Result 448 states and 523 transitions. [2022-12-13 19:32:42,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:32:42,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2022-12-13 19:32:42,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:42,831 INFO L225 Difference]: With dead ends: 448 [2022-12-13 19:32:42,831 INFO L226 Difference]: Without dead ends: 246 [2022-12-13 19:32:42,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:32:42,832 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 2 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:42,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 692 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:32:42,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-12-13 19:32:42,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-12-13 19:32:42,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 230 states have (on average 1.1565217391304348) internal successors, (266), 240 states have internal predecessors, (266), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-13 19:32:42,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 283 transitions. [2022-12-13 19:32:42,847 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 283 transitions. Word has length 73 [2022-12-13 19:32:42,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:42,847 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 283 transitions. [2022-12-13 19:32:42,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:32:42,847 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 283 transitions. [2022-12-13 19:32:42,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 19:32:42,848 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:42,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:42,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-13 19:32:43,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:43,049 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:43,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:43,050 INFO L85 PathProgramCache]: Analyzing trace with hash -713148852, now seen corresponding path program 1 times [2022-12-13 19:32:43,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:43,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141281006] [2022-12-13 19:32:43,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:32:43,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:43,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:43,052 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:43,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 19:32:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:32:43,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:32:43,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 19:32:43,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:32:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 19:32:43,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:43,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141281006] [2022-12-13 19:32:43,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141281006] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:32:43,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:32:43,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 19:32:43,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404062369] [2022-12-13 19:32:43,723 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:32:43,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:32:43,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:43,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:32:43,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:32:43,724 INFO L87 Difference]: Start difference. First operand 246 states and 283 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 19:32:43,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:43,906 INFO L93 Difference]: Finished difference Result 462 states and 544 transitions. [2022-12-13 19:32:43,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 19:32:43,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 75 [2022-12-13 19:32:43,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:43,907 INFO L225 Difference]: With dead ends: 462 [2022-12-13 19:32:43,907 INFO L226 Difference]: Without dead ends: 257 [2022-12-13 19:32:43,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:32:43,908 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 8 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:43,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1377 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:32:43,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-12-13 19:32:43,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2022-12-13 19:32:43,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 238 states have (on average 1.1764705882352942) internal successors, (280), 248 states have internal predecessors, (280), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-13 19:32:43,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 297 transitions. [2022-12-13 19:32:43,919 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 297 transitions. Word has length 75 [2022-12-13 19:32:43,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:43,919 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 297 transitions. [2022-12-13 19:32:43,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 19:32:43,920 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 297 transitions. [2022-12-13 19:32:43,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 19:32:43,920 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:43,920 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:43,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-13 19:32:44,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:44,122 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:44,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:44,124 INFO L85 PathProgramCache]: Analyzing trace with hash -633025810, now seen corresponding path program 2 times [2022-12-13 19:32:44,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:44,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221365740] [2022-12-13 19:32:44,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:32:44,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:44,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:44,129 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:44,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 19:32:45,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:32:45,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:32:45,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:32:45,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:45,202 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 19:32:45,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:32:45,479 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:32:45,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:45,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221365740] [2022-12-13 19:32:45,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221365740] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:32:45,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:32:45,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-12-13 19:32:45,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253772289] [2022-12-13 19:32:45,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:32:45,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 19:32:45,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:45,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 19:32:45,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:32:45,482 INFO L87 Difference]: Start difference. First operand 255 states and 297 transitions. Second operand has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 19:32:46,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:46,219 INFO L93 Difference]: Finished difference Result 490 states and 586 transitions. [2022-12-13 19:32:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 19:32:46,219 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79 [2022-12-13 19:32:46,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:46,220 INFO L225 Difference]: With dead ends: 490 [2022-12-13 19:32:46,221 INFO L226 Difference]: Without dead ends: 272 [2022-12-13 19:32:46,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2022-12-13 19:32:46,222 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 18 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:46,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1631 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:32:46,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-12-13 19:32:46,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 264. [2022-12-13 19:32:46,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 247 states have (on average 1.1821862348178138) internal successors, (292), 257 states have internal predecessors, (292), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-13 19:32:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 309 transitions. [2022-12-13 19:32:46,230 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 309 transitions. Word has length 79 [2022-12-13 19:32:46,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:46,230 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 309 transitions. [2022-12-13 19:32:46,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 19:32:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 309 transitions. [2022-12-13 19:32:46,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 19:32:46,231 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:46,231 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:46,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-13 19:32:46,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:46,432 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:46,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:46,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1045739648, now seen corresponding path program 3 times [2022-12-13 19:32:46,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:46,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038881061] [2022-12-13 19:32:46,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 19:32:46,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:46,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:46,434 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:46,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-13 19:32:49,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-13 19:32:49,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:32:49,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 19:32:49,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:49,969 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 68 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-12-13 19:32:49,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:32:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 68 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-12-13 19:32:50,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:50,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038881061] [2022-12-13 19:32:50,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038881061] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:32:50,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:32:50,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-12-13 19:32:50,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092875228] [2022-12-13 19:32:50,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:32:50,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 19:32:50,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:50,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 19:32:50,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-12-13 19:32:50,362 INFO L87 Difference]: Start difference. First operand 264 states and 309 transitions. Second operand has 16 states, 16 states have (on average 5.1875) internal successors, (83), 16 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:32:51,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:51,583 INFO L93 Difference]: Finished difference Result 506 states and 605 transitions. [2022-12-13 19:32:51,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 19:32:51,584 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.1875) internal successors, (83), 16 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 88 [2022-12-13 19:32:51,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:51,586 INFO L225 Difference]: With dead ends: 506 [2022-12-13 19:32:51,586 INFO L226 Difference]: Without dead ends: 281 [2022-12-13 19:32:51,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=288, Invalid=524, Unknown=0, NotChecked=0, Total=812 [2022-12-13 19:32:51,587 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 30 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:51,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 2308 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 19:32:51,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-12-13 19:32:51,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 271. [2022-12-13 19:32:51,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 254 states have (on average 1.2007874015748032) internal successors, (305), 264 states have internal predecessors, (305), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-13 19:32:51,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 322 transitions. [2022-12-13 19:32:51,601 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 322 transitions. Word has length 88 [2022-12-13 19:32:51,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:51,601 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 322 transitions. [2022-12-13 19:32:51,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.1875) internal successors, (83), 16 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:32:51,601 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 322 transitions. [2022-12-13 19:32:51,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-13 19:32:51,602 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:51,603 INFO L195 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:51,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-13 19:32:51,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:51,803 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:51,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:51,804 INFO L85 PathProgramCache]: Analyzing trace with hash -272203346, now seen corresponding path program 4 times [2022-12-13 19:32:51,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:51,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569411810] [2022-12-13 19:32:51,805 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 19:32:51,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:51,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:51,806 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:51,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-12-13 19:32:52,377 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 19:32:52,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:32:52,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 19:32:52,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:52,536 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 146 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-12-13 19:32:52,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:32:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-12-13 19:32:53,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:32:53,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569411810] [2022-12-13 19:32:53,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569411810] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:32:53,074 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:32:53,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-12-13 19:32:53,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169069988] [2022-12-13 19:32:53,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:32:53,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 19:32:53,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:32:53,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 19:32:53,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-12-13 19:32:53,077 INFO L87 Difference]: Start difference. First operand 271 states and 322 transitions. Second operand has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 26 states have internal predecessors, (97), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 19:32:55,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:32:55,435 INFO L93 Difference]: Finished difference Result 537 states and 651 transitions. [2022-12-13 19:32:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 19:32:55,436 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 26 states have internal predecessors, (97), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 95 [2022-12-13 19:32:55,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:32:55,437 INFO L225 Difference]: With dead ends: 537 [2022-12-13 19:32:55,437 INFO L226 Difference]: Without dead ends: 303 [2022-12-13 19:32:55,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=998, Invalid=2194, Unknown=0, NotChecked=0, Total=3192 [2022-12-13 19:32:55,439 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 34 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 19:32:55,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2864 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 19:32:55,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-12-13 19:32:55,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 283. [2022-12-13 19:32:55,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 266 states have (on average 1.1917293233082706) internal successors, (317), 276 states have internal predecessors, (317), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-13 19:32:55,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 334 transitions. [2022-12-13 19:32:55,452 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 334 transitions. Word has length 95 [2022-12-13 19:32:55,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:32:55,452 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 334 transitions. [2022-12-13 19:32:55,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 26 states have internal predecessors, (97), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 19:32:55,453 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 334 transitions. [2022-12-13 19:32:55,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-13 19:32:55,453 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:32:55,453 INFO L195 NwaCegarLoop]: trace histogram [34, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:32:55,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-12-13 19:32:55,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:55,655 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:32:55,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:32:55,656 INFO L85 PathProgramCache]: Analyzing trace with hash -164419410, now seen corresponding path program 5 times [2022-12-13 19:32:55,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:32:55,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024081249] [2022-12-13 19:32:55,659 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 19:32:55,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:32:55,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:32:55,662 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:32:55,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-12-13 19:32:58,579 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2022-12-13 19:32:58,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:32:58,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 19:32:58,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:32:59,003 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 302 proven. 253 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-12-13 19:32:59,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:33:00,832 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 554 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-12-13 19:33:00,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:33:00,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024081249] [2022-12-13 19:33:00,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024081249] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:33:00,832 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:33:00,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2022-12-13 19:33:00,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288931698] [2022-12-13 19:33:00,833 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:33:00,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-13 19:33:00,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:33:00,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-13 19:33:00,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2022-12-13 19:33:00,836 INFO L87 Difference]: Start difference. First operand 283 states and 334 transitions. Second operand has 50 states, 50 states have (on average 2.42) internal successors, (121), 50 states have internal predecessors, (121), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 19:33:10,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:33:10,977 INFO L93 Difference]: Finished difference Result 604 states and 750 transitions. [2022-12-13 19:33:10,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-12-13 19:33:10,978 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.42) internal successors, (121), 50 states have internal predecessors, (121), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 107 [2022-12-13 19:33:10,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:33:10,979 INFO L225 Difference]: With dead ends: 604 [2022-12-13 19:33:10,979 INFO L226 Difference]: Without dead ends: 358 [2022-12-13 19:33:10,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1383 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=3791, Invalid=9319, Unknown=0, NotChecked=0, Total=13110 [2022-12-13 19:33:10,982 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 69 mSDsluCounter, 6208 mSDsCounter, 0 mSdLazyCounter, 2408 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 6461 SdHoareTripleChecker+Invalid, 2450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:33:10,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 6461 Invalid, 2450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2408 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-13 19:33:10,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-12-13 19:33:11,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 316. [2022-12-13 19:33:11,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 299 states have (on average 1.2073578595317727) internal successors, (361), 309 states have internal predecessors, (361), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-13 19:33:11,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 378 transitions. [2022-12-13 19:33:11,003 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 378 transitions. Word has length 107 [2022-12-13 19:33:11,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:33:11,003 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 378 transitions. [2022-12-13 19:33:11,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.42) internal successors, (121), 50 states have internal predecessors, (121), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 19:33:11,004 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 378 transitions. [2022-12-13 19:33:11,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-12-13 19:33:11,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:33:11,005 INFO L195 NwaCegarLoop]: trace histogram [67, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:33:11,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-12-13 19:33:11,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:33:11,207 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:33:11,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:33:11,208 INFO L85 PathProgramCache]: Analyzing trace with hash 2000971200, now seen corresponding path program 6 times [2022-12-13 19:33:11,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:33:11,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40391001] [2022-12-13 19:33:11,211 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 19:33:11,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:33:11,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:33:11,214 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:33:11,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-12-13 19:33:25,732 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 24 check-sat command(s) [2022-12-13 19:33:25,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:33:25,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-13 19:33:25,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:33:26,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 1082 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2022-12-13 19:33:26,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:33:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 1082 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2022-12-13 19:33:29,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:33:29,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40391001] [2022-12-13 19:33:29,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40391001] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:33:29,420 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:33:29,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2022-12-13 19:33:29,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641306869] [2022-12-13 19:33:29,421 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:33:29,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-13 19:33:29,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:33:29,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-13 19:33:29,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2022-12-13 19:33:29,422 INFO L87 Difference]: Start difference. First operand 316 states and 378 transitions. Second operand has 52 states, 52 states have (on average 2.2884615384615383) internal successors, (119), 52 states have internal predecessors, (119), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:33:44,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:33:44,584 INFO L93 Difference]: Finished difference Result 662 states and 813 transitions. [2022-12-13 19:33:44,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-12-13 19:33:44,585 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.2884615384615383) internal successors, (119), 52 states have internal predecessors, (119), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 140 [2022-12-13 19:33:44,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:33:44,588 INFO L225 Difference]: With dead ends: 662 [2022-12-13 19:33:44,588 INFO L226 Difference]: Without dead ends: 385 [2022-12-13 19:33:44,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1773 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=3276, Invalid=6824, Unknown=0, NotChecked=0, Total=10100 [2022-12-13 19:33:44,591 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 100 mSDsluCounter, 6656 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 6908 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-13 19:33:44,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 6908 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-13 19:33:44,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-12-13 19:33:44,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 341. [2022-12-13 19:33:44,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 324 states have (on average 1.2654320987654322) internal successors, (410), 334 states have internal predecessors, (410), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-13 19:33:44,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 427 transitions. [2022-12-13 19:33:44,610 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 427 transitions. Word has length 140 [2022-12-13 19:33:44,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:33:44,611 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 427 transitions. [2022-12-13 19:33:44,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.2884615384615383) internal successors, (119), 52 states have internal predecessors, (119), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:33:44,611 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 427 transitions. [2022-12-13 19:33:44,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-12-13 19:33:44,612 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:33:44,612 INFO L195 NwaCegarLoop]: trace histogram [92, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:33:44,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-12-13 19:33:44,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:33:44,812 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 19:33:44,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:33:44,813 INFO L85 PathProgramCache]: Analyzing trace with hash 522684590, now seen corresponding path program 7 times [2022-12-13 19:33:44,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:33:44,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230428512] [2022-12-13 19:33:44,814 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 19:33:44,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:33:44,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:33:44,815 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:33:44,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea470e2-5cc6-4b60-99fe-27df08e8a78c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-12-13 19:33:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:33:46,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 1726 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-13 19:33:46,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:33:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4374 backedges. 2207 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2022-12-13 19:33:48,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:33:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 4374 backedges. 2207 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2022-12-13 19:33:55,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:33:55,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230428512] [2022-12-13 19:33:55,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230428512] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:33:55,979 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:33:55,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2022-12-13 19:33:55,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815914587] [2022-12-13 19:33:55,979 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:33:55,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-12-13 19:33:55,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:33:55,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-12-13 19:33:55,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2022-12-13 19:33:55,986 INFO L87 Difference]: Start difference. First operand 341 states and 427 transitions. Second operand has 102 states, 102 states have (on average 1.6568627450980393) internal successors, (169), 102 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)