./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-industry-pattern/nested-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/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_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/nested-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/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_6d685159-cecb-4068-8c29-57b1f52e81ec/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 13e5ee77a02e52d8ba8ae9f3698472ae34be00d2574eddc823f2c8e804568236 --- Real Ultimate output --- [0.002s][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 12:16:33,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:16:33,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:16:33,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:16:33,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:16:33,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:16:33,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:16:33,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:16:33,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:16:33,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:16:33,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:16:33,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:16:33,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:16:33,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:16:33,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:16:33,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:16:33,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:16:33,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:16:33,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:16:33,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:16:33,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:16:33,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:16:33,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:16:33,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:16:33,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:16:33,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:16:33,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:16:33,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:16:33,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:16:33,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:16:33,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:16:33,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:16:33,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:16:33,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:16:33,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:16:33,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:16:33,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:16:33,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:16:33,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:16:33,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:16:33,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:16:33,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 12:16:33,710 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:16:33,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:16:33,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:16:33,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:16:33,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:16:33,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:16:33,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:16:33,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:16:33,713 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:16:33,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:16:33,713 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:16:33,713 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:16:33,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:16:33,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:16:33,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:16:33,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:16:33,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:16:33,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:16:33,714 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:16:33,714 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:16:33,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:16:33,715 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:16:33,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:16:33,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:16:33,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:16:33,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:16:33,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:16:33,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:16:33,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:16:33,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:16:33,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:16:33,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:16:33,716 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:16:33,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:16:33,717 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:16:33,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:16:33,717 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:16:33,717 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_6d685159-cecb-4068-8c29-57b1f52e81ec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13e5ee77a02e52d8ba8ae9f3698472ae34be00d2574eddc823f2c8e804568236 [2022-12-13 12:16:33,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:16:33,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:16:33,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:16:33,907 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:16:33,908 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:16:33,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-industry-pattern/nested-3.c [2022-12-13 12:16:36,491 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:16:36,622 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:16:36,623 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/sv-benchmarks/c/loop-industry-pattern/nested-3.c [2022-12-13 12:16:36,626 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/data/00343b5ae/287b52f7065f4a34ab330eeafe5e5d7d/FLAG2770ba27f [2022-12-13 12:16:36,637 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/data/00343b5ae/287b52f7065f4a34ab330eeafe5e5d7d [2022-12-13 12:16:36,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:16:36,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:16:36,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:16:36,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:16:36,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:16:36,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b414c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36, skipping insertion in model container [2022-12-13 12:16:36,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:16:36,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:16:36,775 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_6d685159-cecb-4068-8c29-57b1f52e81ec/sv-benchmarks/c/loop-industry-pattern/nested-3.c[404,417] [2022-12-13 12:16:36,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:16:36,794 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:16:36,803 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_6d685159-cecb-4068-8c29-57b1f52e81ec/sv-benchmarks/c/loop-industry-pattern/nested-3.c[404,417] [2022-12-13 12:16:36,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:16:36,819 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:16:36,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36 WrapperNode [2022-12-13 12:16:36,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:16:36,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:16:36,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:16:36,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:16:36,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,843 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2022-12-13 12:16:36,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:16:36,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:16:36,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:16:36,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:16:36,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,858 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:16:36,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:16:36,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:16:36,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:16:36,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (1/1) ... [2022-12-13 12:16:36,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:16:36,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:16:36,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:16:36,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:16:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:16:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:16:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:16:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:16:36,971 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:16:36,973 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:16:37,110 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:16:37,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:16:37,116 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 12:16:37,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:16:37 BoogieIcfgContainer [2022-12-13 12:16:37,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:16:37,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:16:37,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:16:37,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:16:37,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:16:36" (1/3) ... [2022-12-13 12:16:37,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c5065a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:16:37, skipping insertion in model container [2022-12-13 12:16:37,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:16:36" (2/3) ... [2022-12-13 12:16:37,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c5065a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:16:37, skipping insertion in model container [2022-12-13 12:16:37,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:16:37" (3/3) ... [2022-12-13 12:16:37,126 INFO L112 eAbstractionObserver]: Analyzing ICFG nested-3.c [2022-12-13 12:16:37,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:16:37,144 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-12-13 12:16:37,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:16:37,201 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;@5dc73639, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:16:37,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-12-13 12:16:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 44 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:37,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 12:16:37,213 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:37,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:37,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:37,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:37,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1811214539, now seen corresponding path program 1 times [2022-12-13 12:16:37,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:37,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845413087] [2022-12-13 12:16:37,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:37,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:37,344 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 12:16:37,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:37,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845413087] [2022-12-13 12:16:37,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845413087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:37,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:37,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:16:37,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767912012] [2022-12-13 12:16:37,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:37,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:16:37,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:37,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:16:37,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:16:37,380 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 44 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 12:16:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:37,396 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2022-12-13 12:16:37,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:16:37,398 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 12:16:37,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:37,403 INFO L225 Difference]: With dead ends: 85 [2022-12-13 12:16:37,404 INFO L226 Difference]: Without dead ends: 41 [2022-12-13 12:16:37,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 12:16:37,409 INFO L413 NwaCegarLoop]: 47 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, 47 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 12:16:37,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:16:37,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-13 12:16:37,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-12-13 12:16:37,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 40 states have internal predecessors, (46), 0 states have call successors, (0), 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 12:16:37,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2022-12-13 12:16:37,439 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 7 [2022-12-13 12:16:37,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:37,439 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2022-12-13 12:16:37,440 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 12:16:37,440 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2022-12-13 12:16:37,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 12:16:37,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:37,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:37,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:16:37,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:37,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:37,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1810767674, now seen corresponding path program 1 times [2022-12-13 12:16:37,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:37,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190336827] [2022-12-13 12:16:37,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:37,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:37,504 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 12:16:37,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:37,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190336827] [2022-12-13 12:16:37,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190336827] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:37,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:37,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:16:37,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895556901] [2022-12-13 12:16:37,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:37,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:16:37,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:37,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:16:37,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:16:37,507 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 12:16:37,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:37,539 INFO L93 Difference]: Finished difference Result 88 states and 100 transitions. [2022-12-13 12:16:37,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:16:37,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 12:16:37,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:37,540 INFO L225 Difference]: With dead ends: 88 [2022-12-13 12:16:37,540 INFO L226 Difference]: Without dead ends: 49 [2022-12-13 12:16:37,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 12:16:37,541 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:37,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 76 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:16:37,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-13 12:16:37,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2022-12-13 12:16:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 41 states have internal predecessors, (47), 0 states have call successors, (0), 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 12:16:37,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-12-13 12:16:37,546 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 7 [2022-12-13 12:16:37,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:37,547 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-12-13 12:16:37,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 12:16:37,547 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-12-13 12:16:37,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 12:16:37,547 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:37,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:37,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:16:37,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:37,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:37,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1810815372, now seen corresponding path program 1 times [2022-12-13 12:16:37,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:37,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028103801] [2022-12-13 12:16:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:37,601 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 12:16:37,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:37,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028103801] [2022-12-13 12:16:37,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028103801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:37,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:37,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:16:37,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766458117] [2022-12-13 12:16:37,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:37,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:16:37,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:37,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:16:37,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:16:37,604 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 12:16:37,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:37,647 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-12-13 12:16:37,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:16:37,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 12:16:37,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:37,648 INFO L225 Difference]: With dead ends: 49 [2022-12-13 12:16:37,648 INFO L226 Difference]: Without dead ends: 47 [2022-12-13 12:16:37,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 12:16:37,649 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 4 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:37,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 111 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:16:37,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-13 12:16:37,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2022-12-13 12:16:37,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.625) internal successors, (52), 45 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-12-13 12:16:37,655 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 7 [2022-12-13 12:16:37,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:37,655 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-12-13 12:16:37,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 12:16:37,655 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-12-13 12:16:37,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:16:37,656 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:37,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:37,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:16:37,656 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:37,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:37,657 INFO L85 PathProgramCache]: Analyzing trace with hash 381359683, now seen corresponding path program 1 times [2022-12-13 12:16:37,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:37,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543410028] [2022-12-13 12:16:37,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:37,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:37,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:37,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:37,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543410028] [2022-12-13 12:16:37,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543410028] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:16:37,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885080875] [2022-12-13 12:16:37,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:37,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:37,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:16:37,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:16:37,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 12:16:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:37,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 12:16:37,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:16:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 12:16:37,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:16:37,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885080875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:37,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:16:37,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-12-13 12:16:37,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839721462] [2022-12-13 12:16:37,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:37,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:16:37,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:37,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:16:37,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:16:37,805 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:37,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:37,818 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2022-12-13 12:16:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:16:37,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-13 12:16:37,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:37,820 INFO L225 Difference]: With dead ends: 46 [2022-12-13 12:16:37,820 INFO L226 Difference]: Without dead ends: 45 [2022-12-13 12:16:37,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:16:37,821 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:37,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 38 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:16:37,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-12-13 12:16:37,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-12-13 12:16:37,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.59375) internal successors, (51), 44 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 12:16:37,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-12-13 12:16:37,825 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 12 [2022-12-13 12:16:37,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:37,825 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-12-13 12:16:37,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:37,825 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-12-13 12:16:37,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:16:37,826 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:37,826 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:37,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:16:38,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:38,028 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:38,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:38,030 INFO L85 PathProgramCache]: Analyzing trace with hash 381407381, now seen corresponding path program 1 times [2022-12-13 12:16:38,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:38,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729360166] [2022-12-13 12:16:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:38,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:38,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:38,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:38,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729360166] [2022-12-13 12:16:38,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729360166] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:16:38,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103087265] [2022-12-13 12:16:38,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:38,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:38,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:16:38,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:16:38,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 12:16:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:38,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:16:38,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:16:38,248 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 12:16:38,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:16:38,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103087265] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:38,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:16:38,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-12-13 12:16:38,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017456816] [2022-12-13 12:16:38,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:38,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:16:38,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:38,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:16:38,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:16:38,250 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:38,319 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2022-12-13 12:16:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:16:38,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-13 12:16:38,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:38,321 INFO L225 Difference]: With dead ends: 134 [2022-12-13 12:16:38,321 INFO L226 Difference]: Without dead ends: 91 [2022-12-13 12:16:38,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-13 12:16:38,323 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 49 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:38,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 120 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:16:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-12-13 12:16:38,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2022-12-13 12:16:38,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 66 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2022-12-13 12:16:38,328 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 12 [2022-12-13 12:16:38,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:38,328 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2022-12-13 12:16:38,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:38,329 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2022-12-13 12:16:38,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:16:38,329 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:38,329 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:38,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 12:16:38,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:38,531 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:38,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:38,532 INFO L85 PathProgramCache]: Analyzing trace with hash 381409303, now seen corresponding path program 1 times [2022-12-13 12:16:38,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:38,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168024160] [2022-12-13 12:16:38,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:38,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:38,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:38,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168024160] [2022-12-13 12:16:38,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168024160] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:16:38,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209501551] [2022-12-13 12:16:38,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:38,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:38,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:16:38,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:16:38,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 12:16:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:38,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:16:38,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:16:38,754 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 12:16:38,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:16:38,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209501551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:38,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:16:38,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 12:16:38,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898329391] [2022-12-13 12:16:38,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:38,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:16:38,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:38,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:16:38,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:16:38,756 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:38,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:38,800 INFO L93 Difference]: Finished difference Result 68 states and 88 transitions. [2022-12-13 12:16:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:16:38,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-13 12:16:38,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:38,801 INFO L225 Difference]: With dead ends: 68 [2022-12-13 12:16:38,801 INFO L226 Difference]: Without dead ends: 67 [2022-12-13 12:16:38,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:16:38,802 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 43 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:38,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 99 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:16:38,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-13 12:16:38,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2022-12-13 12:16:38,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.5740740740740742) internal successors, (85), 65 states have internal predecessors, (85), 0 states have call successors, (0), 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 12:16:38,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2022-12-13 12:16:38,809 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 85 transitions. Word has length 12 [2022-12-13 12:16:38,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:38,809 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-12-13 12:16:38,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:38,810 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 85 transitions. [2022-12-13 12:16:38,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 12:16:38,810 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:38,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:38,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 12:16:39,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 12:16:39,012 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:39,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:39,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1062751644, now seen corresponding path program 1 times [2022-12-13 12:16:39,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:39,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408076611] [2022-12-13 12:16:39,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:39,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:39,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:39,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408076611] [2022-12-13 12:16:39,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408076611] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:16:39,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975489199] [2022-12-13 12:16:39,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:39,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:39,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:16:39,153 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:16:39,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 12:16:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:39,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 12:16:39,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:16:39,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:39,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:16:39,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:39,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975489199] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:16:39,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:16:39,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2022-12-13 12:16:39,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486069413] [2022-12-13 12:16:39,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:16:39,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 12:16:39,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:39,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 12:16:39,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:16:39,236 INFO L87 Difference]: Start difference. First operand 66 states and 85 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:39,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:39,373 INFO L93 Difference]: Finished difference Result 270 states and 344 transitions. [2022-12-13 12:16:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 12:16:39,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-13 12:16:39,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:39,375 INFO L225 Difference]: With dead ends: 270 [2022-12-13 12:16:39,375 INFO L226 Difference]: Without dead ends: 206 [2022-12-13 12:16:39,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=224, Unknown=0, NotChecked=0, Total=342 [2022-12-13 12:16:39,376 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 169 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:39,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 243 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:16:39,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-12-13 12:16:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 99. [2022-12-13 12:16:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 87 states have (on average 1.5402298850574712) internal successors, (134), 98 states have internal predecessors, (134), 0 states have call successors, (0), 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 12:16:39,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 134 transitions. [2022-12-13 12:16:39,388 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 134 transitions. Word has length 13 [2022-12-13 12:16:39,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:39,389 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 134 transitions. [2022-12-13 12:16:39,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:39,389 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 134 transitions. [2022-12-13 12:16:39,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 12:16:39,389 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:39,389 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:39,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 12:16:39,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:39,591 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:39,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:39,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1061213435, now seen corresponding path program 1 times [2022-12-13 12:16:39,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:39,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064701396] [2022-12-13 12:16:39,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:39,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:39,653 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 12:16:39,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:39,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064701396] [2022-12-13 12:16:39,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064701396] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:39,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:39,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:16:39,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342965514] [2022-12-13 12:16:39,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:39,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:16:39,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:39,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:16:39,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:16:39,655 INFO L87 Difference]: Start difference. First operand 99 states and 134 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:39,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:39,678 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-12-13 12:16:39,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:16:39,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-13 12:16:39,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:39,679 INFO L225 Difference]: With dead ends: 100 [2022-12-13 12:16:39,680 INFO L226 Difference]: Without dead ends: 99 [2022-12-13 12:16:39,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 12:16:39,681 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:39,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:16:39,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-13 12:16:39,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2022-12-13 12:16:39,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 87 states have (on average 1.5057471264367817) internal successors, (131), 97 states have internal predecessors, (131), 0 states have call successors, (0), 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 12:16:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 131 transitions. [2022-12-13 12:16:39,690 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 131 transitions. Word has length 13 [2022-12-13 12:16:39,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:39,690 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 131 transitions. [2022-12-13 12:16:39,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:39,690 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 131 transitions. [2022-12-13 12:16:39,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 12:16:39,691 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:39,691 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:39,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:16:39,691 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:39,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:39,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1245738357, now seen corresponding path program 1 times [2022-12-13 12:16:39,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:39,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347670432] [2022-12-13 12:16:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:39,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 12:16:39,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:39,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347670432] [2022-12-13 12:16:39,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347670432] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:39,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:39,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:16:39,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917950073] [2022-12-13 12:16:39,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:39,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:16:39,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:39,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:16:39,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:16:39,725 INFO L87 Difference]: Start difference. First operand 98 states and 131 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 12:16:39,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:39,748 INFO L93 Difference]: Finished difference Result 178 states and 220 transitions. [2022-12-13 12:16:39,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:16:39,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-12-13 12:16:39,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:39,749 INFO L225 Difference]: With dead ends: 178 [2022-12-13 12:16:39,749 INFO L226 Difference]: Without dead ends: 114 [2022-12-13 12:16:39,750 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 12:16:39,751 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 34 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:39,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 152 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:16:39,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-12-13 12:16:39,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 98. [2022-12-13 12:16:39,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 87 states have (on average 1.4942528735632183) internal successors, (130), 97 states have internal predecessors, (130), 0 states have call successors, (0), 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 12:16:39,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 130 transitions. [2022-12-13 12:16:39,758 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 130 transitions. Word has length 18 [2022-12-13 12:16:39,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:39,759 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 130 transitions. [2022-12-13 12:16:39,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 12:16:39,759 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 130 transitions. [2022-12-13 12:16:39,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 12:16:39,759 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:39,759 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:39,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 12:16:39,760 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:39,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:39,760 INFO L85 PathProgramCache]: Analyzing trace with hash 234614765, now seen corresponding path program 1 times [2022-12-13 12:16:39,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:39,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469591475] [2022-12-13 12:16:39,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:39,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:39,788 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 12:16:39,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:39,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469591475] [2022-12-13 12:16:39,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469591475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:39,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:39,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:16:39,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404675127] [2022-12-13 12:16:39,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:39,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:16:39,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:39,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:16:39,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:16:39,790 INFO L87 Difference]: Start difference. First operand 98 states and 130 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:39,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:39,811 INFO L93 Difference]: Finished difference Result 184 states and 234 transitions. [2022-12-13 12:16:39,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:16:39,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-12-13 12:16:39,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:39,812 INFO L225 Difference]: With dead ends: 184 [2022-12-13 12:16:39,812 INFO L226 Difference]: Without dead ends: 88 [2022-12-13 12:16:39,813 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 12:16:39,813 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 16 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:39,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 104 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:16:39,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-12-13 12:16:39,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 51. [2022-12-13 12:16:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.302325581395349) internal successors, (56), 50 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:39,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-12-13 12:16:39,818 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 18 [2022-12-13 12:16:39,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:39,818 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-12-13 12:16:39,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-12-13 12:16:39,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 12:16:39,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:39,819 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:39,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 12:16:39,819 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:39,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:39,819 INFO L85 PathProgramCache]: Analyzing trace with hash 234621107, now seen corresponding path program 1 times [2022-12-13 12:16:39,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:39,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085734769] [2022-12-13 12:16:39,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:39,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:39,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 12:16:39,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:39,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085734769] [2022-12-13 12:16:39,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085734769] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:39,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:39,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:16:39,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498298172] [2022-12-13 12:16:39,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:39,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:16:39,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:39,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:16:39,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:16:39,839 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:39,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:39,856 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2022-12-13 12:16:39,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:16:39,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-12-13 12:16:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:39,857 INFO L225 Difference]: With dead ends: 88 [2022-12-13 12:16:39,857 INFO L226 Difference]: Without dead ends: 84 [2022-12-13 12:16:39,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:16:39,858 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 7 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:39,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 60 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:16:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-12-13 12:16:39,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-12-13 12:16:39,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 76 states have (on average 1.236842105263158) internal successors, (94), 83 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:39,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2022-12-13 12:16:39,863 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 18 [2022-12-13 12:16:39,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:39,864 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2022-12-13 12:16:39,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:39,864 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2022-12-13 12:16:39,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 12:16:39,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:39,865 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:39,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 12:16:39,865 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:39,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:39,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2132587349, now seen corresponding path program 1 times [2022-12-13 12:16:39,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:39,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012004090] [2022-12-13 12:16:39,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:39,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:39,883 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 12:16:39,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:39,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012004090] [2022-12-13 12:16:39,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012004090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:39,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:39,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:16:39,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114418663] [2022-12-13 12:16:39,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:39,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:16:39,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:39,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:16:39,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:16:39,885 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 12:16:39,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:39,902 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2022-12-13 12:16:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:16:39,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-13 12:16:39,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:39,904 INFO L225 Difference]: With dead ends: 92 [2022-12-13 12:16:39,904 INFO L226 Difference]: Without dead ends: 88 [2022-12-13 12:16:39,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:16:39,904 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 9 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:39,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 60 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:16:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-12-13 12:16:39,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-12-13 12:16:39,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.225) internal successors, (98), 87 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2022-12-13 12:16:39,911 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 20 [2022-12-13 12:16:39,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:39,911 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2022-12-13 12:16:39,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 12:16:39,911 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2022-12-13 12:16:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-13 12:16:39,913 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:39,913 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:39,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 12:16:39,913 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:39,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:39,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1893988480, now seen corresponding path program 1 times [2022-12-13 12:16:39,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:39,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041557854] [2022-12-13 12:16:39,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:39,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:39,951 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 12:16:39,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:39,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041557854] [2022-12-13 12:16:39,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041557854] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:16:39,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513272826] [2022-12-13 12:16:39,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:39,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:39,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:16:39,953 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:16:39,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 12:16:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:39,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:16:39,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:16:40,034 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:16:40,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:16:40,085 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:16:40,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513272826] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:16:40,085 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:16:40,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-12-13 12:16:40,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877223098] [2022-12-13 12:16:40,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:16:40,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 12:16:40,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:40,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 12:16:40,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-12-13 12:16:40,087 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:40,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:40,329 INFO L93 Difference]: Finished difference Result 211 states and 247 transitions. [2022-12-13 12:16:40,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 12:16:40,330 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-12-13 12:16:40,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:40,330 INFO L225 Difference]: With dead ends: 211 [2022-12-13 12:16:40,331 INFO L226 Difference]: Without dead ends: 146 [2022-12-13 12:16:40,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=742, Unknown=0, NotChecked=0, Total=992 [2022-12-13 12:16:40,332 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 103 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:40,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 170 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:16:40,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-13 12:16:40,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-12-13 12:16:40,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 140 states have (on average 1.1571428571428573) internal successors, (162), 145 states have internal predecessors, (162), 0 states have call successors, (0), 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 12:16:40,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 162 transitions. [2022-12-13 12:16:40,343 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 162 transitions. Word has length 41 [2022-12-13 12:16:40,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:40,343 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 162 transitions. [2022-12-13 12:16:40,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:40,343 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 162 transitions. [2022-12-13 12:16:40,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-13 12:16:40,345 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:40,345 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:40,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 12:16:40,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:40,546 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:40,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:40,546 INFO L85 PathProgramCache]: Analyzing trace with hash 711043683, now seen corresponding path program 1 times [2022-12-13 12:16:40,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:40,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867276829] [2022-12-13 12:16:40,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:40,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-12-13 12:16:40,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:40,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867276829] [2022-12-13 12:16:40,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867276829] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:16:40,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712521396] [2022-12-13 12:16:40,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:40,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:40,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:16:40,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:16:40,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 12:16:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:40,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 12:16:40,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:16:40,751 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 137 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 12:16:40,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:16:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 137 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 12:16:40,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712521396] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:16:40,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:16:40,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 13, 13] total 26 [2022-12-13 12:16:40,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916348850] [2022-12-13 12:16:40,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:16:40,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 12:16:40,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:40,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 12:16:40,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-12-13 12:16:40,885 INFO L87 Difference]: Start difference. First operand 146 states and 162 transitions. Second operand has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:41,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:41,544 INFO L93 Difference]: Finished difference Result 486 states and 575 transitions. [2022-12-13 12:16:41,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-12-13 12:16:41,545 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-12-13 12:16:41,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:41,546 INFO L225 Difference]: With dead ends: 486 [2022-12-13 12:16:41,546 INFO L226 Difference]: Without dead ends: 393 [2022-12-13 12:16:41,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1766 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1521, Invalid=4485, Unknown=0, NotChecked=0, Total=6006 [2022-12-13 12:16:41,548 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 260 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:41,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 170 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:16:41,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-12-13 12:16:41,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-12-13 12:16:41,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 387 states have (on average 1.124031007751938) internal successors, (435), 392 states have internal predecessors, (435), 0 states have call successors, (0), 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 12:16:41,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 435 transitions. [2022-12-13 12:16:41,565 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 435 transitions. Word has length 72 [2022-12-13 12:16:41,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:41,565 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 435 transitions. [2022-12-13 12:16:41,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:16:41,565 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 435 transitions. [2022-12-13 12:16:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-13 12:16:41,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:41,569 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:41,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 12:16:41,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 12:16:41,771 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:41,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:41,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1672421274, now seen corresponding path program 1 times [2022-12-13 12:16:41,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:41,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287156040] [2022-12-13 12:16:41,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:41,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 0 proven. 635 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2022-12-13 12:16:41,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:41,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287156040] [2022-12-13 12:16:41,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287156040] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:16:41,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768230593] [2022-12-13 12:16:41,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:41,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:41,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:16:41,994 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:16:41,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 12:16:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:42,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 12:16:42,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:16:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 629 proven. 286 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-12-13 12:16:42,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:16:42,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 629 proven. 286 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-12-13 12:16:42,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768230593] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:16:42,716 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:16:42,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 25, 25] total 50 [2022-12-13 12:16:42,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673846008] [2022-12-13 12:16:42,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:16:42,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-13 12:16:42,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:42,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-13 12:16:42,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=604, Invalid=1846, Unknown=0, NotChecked=0, Total=2450 [2022-12-13 12:16:42,719 INFO L87 Difference]: Start difference. First operand 393 states and 435 transitions. Second operand has 50 states, 50 states have (on average 3.34) internal successors, (167), 50 states have internal predecessors, (167), 0 states have call successors, (0), 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 12:16:44,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:44,170 INFO L93 Difference]: Finished difference Result 1031 states and 1212 transitions. [2022-12-13 12:16:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-12-13 12:16:44,170 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.34) internal successors, (167), 50 states have internal predecessors, (167), 0 states have call successors, (0), 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 133 [2022-12-13 12:16:44,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:44,173 INFO L225 Difference]: With dead ends: 1031 [2022-12-13 12:16:44,173 INFO L226 Difference]: Without dead ends: 751 [2022-12-13 12:16:44,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5810 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=4048, Invalid=15412, Unknown=0, NotChecked=0, Total=19460 [2022-12-13 12:16:44,178 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 439 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:44,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 232 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:16:44,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-12-13 12:16:44,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2022-12-13 12:16:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 747 states have (on average 1.109772423025435) internal successors, (829), 750 states have internal predecessors, (829), 0 states have call successors, (0), 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 12:16:44,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 829 transitions. [2022-12-13 12:16:44,211 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 829 transitions. Word has length 133 [2022-12-13 12:16:44,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:44,211 INFO L495 AbstractCegarLoop]: Abstraction has 751 states and 829 transitions. [2022-12-13 12:16:44,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.34) internal successors, (167), 50 states have internal predecessors, (167), 0 states have call successors, (0), 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 12:16:44,212 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 829 transitions. [2022-12-13 12:16:44,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-12-13 12:16:44,214 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:44,214 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 45, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:44,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 12:16:44,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 12:16:44,416 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:44,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:44,417 INFO L85 PathProgramCache]: Analyzing trace with hash 138039103, now seen corresponding path program 1 times [2022-12-13 12:16:44,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:44,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994409732] [2022-12-13 12:16:44,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:44,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:44,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5272 backedges. 0 proven. 2696 refuted. 0 times theorem prover too weak. 2576 trivial. 0 not checked. [2022-12-13 12:16:44,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:44,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994409732] [2022-12-13 12:16:44,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994409732] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:16:44,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376618119] [2022-12-13 12:16:44,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:44,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:44,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:16:44,564 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:16:44,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 12:16:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:44,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-13 12:16:44,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:16:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 5272 backedges. 2693 proven. 1288 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-12-13 12:16:45,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:16:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5272 backedges. 2693 proven. 1288 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-12-13 12:16:46,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376618119] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:16:46,565 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:16:46,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 49, 49] total 98 [2022-12-13 12:16:46,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143715321] [2022-12-13 12:16:46,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:16:46,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-12-13 12:16:46,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:46,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-12-13 12:16:46,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2357, Invalid=7149, Unknown=0, NotChecked=0, Total=9506 [2022-12-13 12:16:46,570 INFO L87 Difference]: Start difference. First operand 751 states and 829 transitions. Second operand has 98 states, 98 states have (on average 3.0) internal successors, (294), 98 states have internal predecessors, (294), 0 states have call successors, (0), 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 12:16:53,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:16:53,628 INFO L93 Difference]: Finished difference Result 2476 states and 2923 transitions. [2022-12-13 12:16:53,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 283 states. [2022-12-13 12:16:53,629 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 3.0) internal successors, (294), 98 states have internal predecessors, (294), 0 states have call successors, (0), 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 254 [2022-12-13 12:16:53,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:16:53,636 INFO L225 Difference]: With dead ends: 2476 [2022-12-13 12:16:53,636 INFO L226 Difference]: Without dead ends: 1958 [2022-12-13 12:16:53,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 328 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36668 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=25119, Invalid=83451, Unknown=0, NotChecked=0, Total=108570 [2022-12-13 12:16:53,645 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 1365 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:16:53,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 231 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:16:53,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2022-12-13 12:16:53,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1471. [2022-12-13 12:16:53,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1467 states have (on average 1.1049761417859578) internal successors, (1621), 1470 states have internal predecessors, (1621), 0 states have call successors, (0), 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 12:16:53,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1621 transitions. [2022-12-13 12:16:53,686 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1621 transitions. Word has length 254 [2022-12-13 12:16:53,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:16:53,686 INFO L495 AbstractCegarLoop]: Abstraction has 1471 states and 1621 transitions. [2022-12-13 12:16:53,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 3.0) internal successors, (294), 98 states have internal predecessors, (294), 0 states have call successors, (0), 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 12:16:53,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1621 transitions. [2022-12-13 12:16:53,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-12-13 12:16:53,692 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:16:53,692 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 94, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:53,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 12:16:53,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 12:16:53,894 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:16:53,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:53,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1553173371, now seen corresponding path program 1 times [2022-12-13 12:16:53,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:53,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397227277] [2022-12-13 12:16:53,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:53,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:54,214 INFO L134 CoverageAnalysis]: Checked inductivity of 22052 backedges. 0 proven. 11148 refuted. 0 times theorem prover too weak. 10904 trivial. 0 not checked. [2022-12-13 12:16:54,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:54,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397227277] [2022-12-13 12:16:54,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397227277] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:16:54,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376320301] [2022-12-13 12:16:54,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:54,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:16:54,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:16:54,216 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:16:54,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 12:16:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:54,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 96 conjunts are in the unsatisfiable core [2022-12-13 12:16:54,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:16:56,346 INFO L134 CoverageAnalysis]: Checked inductivity of 22052 backedges. 11141 proven. 5452 refuted. 0 times theorem prover too weak. 5459 trivial. 0 not checked. [2022-12-13 12:16:56,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:17:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 22052 backedges. 11141 proven. 5452 refuted. 0 times theorem prover too weak. 5459 trivial. 0 not checked. [2022-12-13 12:17:01,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376320301] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:17:01,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:17:01,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 97, 97] total 194 [2022-12-13 12:17:01,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366047101] [2022-12-13 12:17:01,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:17:01,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2022-12-13 12:17:01,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:17:01,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2022-12-13 12:17:01,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9317, Invalid=28125, Unknown=0, NotChecked=0, Total=37442 [2022-12-13 12:17:01,386 INFO L87 Difference]: Start difference. First operand 1471 states and 1621 transitions. Second operand has 194 states, 194 states have (on average 2.7216494845360826) internal successors, (528), 194 states have internal predecessors, (528), 0 states have call successors, (0), 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 12:17:31,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:17:31,386 INFO L93 Difference]: Finished difference Result 4880 states and 5759 transitions. [2022-12-13 12:17:31,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 571 states. [2022-12-13 12:17:31,387 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 194 states have (on average 2.7216494845360826) internal successors, (528), 194 states have internal predecessors, (528), 0 states have call successors, (0), 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 494 [2022-12-13 12:17:31,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:17:31,392 INFO L225 Difference]: With dead ends: 4880 [2022-12-13 12:17:31,392 INFO L226 Difference]: Without dead ends: 3882 [2022-12-13 12:17:31,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1462 GetRequests, 798 SyntacticMatches, 0 SemanticMatches, 664 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152756 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=100935, Invalid=341955, Unknown=0, NotChecked=0, Total=442890 [2022-12-13 12:17:31,413 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 3861 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3861 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 12:17:31,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3861 Valid, 306 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 12:17:31,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3882 states. [2022-12-13 12:17:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3882 to 3882. [2022-12-13 12:17:31,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3882 states, 3878 states have (on average 1.1021144920061887) internal successors, (4274), 3881 states have internal predecessors, (4274), 0 states have call successors, (0), 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 12:17:31,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 4274 transitions. [2022-12-13 12:17:31,525 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 4274 transitions. Word has length 494 [2022-12-13 12:17:31,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:17:31,526 INFO L495 AbstractCegarLoop]: Abstraction has 3882 states and 4274 transitions. [2022-12-13 12:17:31,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 194 states have (on average 2.7216494845360826) internal successors, (528), 194 states have internal predecessors, (528), 0 states have call successors, (0), 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 12:17:31,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 4274 transitions. [2022-12-13 12:17:31,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 977 [2022-12-13 12:17:31,560 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:17:31,561 INFO L195 NwaCegarLoop]: trace histogram [190, 190, 190, 190, 189, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:17:31,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-13 12:17:31,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 12:17:31,762 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:17:31,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:17:31,763 INFO L85 PathProgramCache]: Analyzing trace with hash -2138095071, now seen corresponding path program 1 times [2022-12-13 12:17:31,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:17:31,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002488762] [2022-12-13 12:17:31,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:17:31,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:17:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:17:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 90160 backedges. 0 proven. 45320 refuted. 0 times theorem prover too weak. 44840 trivial. 0 not checked. [2022-12-13 12:17:32,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:17:32,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002488762] [2022-12-13 12:17:32,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002488762] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:17:32,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849434889] [2022-12-13 12:17:32,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:17:32,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:17:32,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:17:32,428 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:17:32,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 12:17:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:17:32,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 1600 conjuncts, 192 conjunts are in the unsatisfiable core [2022-12-13 12:17:32,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:17:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 90160 backedges. 45317 proven. 22420 refuted. 0 times theorem prover too weak. 22423 trivial. 0 not checked. [2022-12-13 12:17:39,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:17:57,394 INFO L134 CoverageAnalysis]: Checked inductivity of 90160 backedges. 45317 proven. 22420 refuted. 0 times theorem prover too weak. 22423 trivial. 0 not checked. [2022-12-13 12:17:57,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849434889] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:17:57,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:17:57,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 193, 193] total 386 [2022-12-13 12:17:57,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443386754] [2022-12-13 12:17:57,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:17:57,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 386 states [2022-12-13 12:17:57,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:17:57,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 386 interpolants. [2022-12-13 12:17:57,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37061, Invalid=111549, Unknown=0, NotChecked=0, Total=148610 [2022-12-13 12:17:57,418 INFO L87 Difference]: Start difference. First operand 3882 states and 4274 transitions. Second operand has 386 states, 386 states have (on average 2.6373056994818653) internal successors, (1018), 386 states have internal predecessors, (1018), 0 states have call successors, (0), 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 12:20:34,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:20:34,451 INFO L93 Difference]: Finished difference Result 10655 states and 12496 transitions. [2022-12-13 12:20:34,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1147 states. [2022-12-13 12:20:34,451 INFO L78 Accepts]: Start accepts. Automaton has has 386 states, 386 states have (on average 2.6373056994818653) internal successors, (1018), 386 states have internal predecessors, (1018), 0 states have call successors, (0), 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 976 [2022-12-13 12:20:34,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:20:34,462 INFO L225 Difference]: With dead ends: 10655 [2022-12-13 12:20:34,462 INFO L226 Difference]: Without dead ends: 7726 [2022-12-13 12:20:34,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2906 GetRequests, 1570 SyntacticMatches, 0 SemanticMatches, 1336 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623396 ImplicationChecksByTransitivity, 117.9s TimeCoverageRelationStatistics Valid=404631, Invalid=1384275, Unknown=0, NotChecked=0, Total=1788906 [2022-12-13 12:20:34,553 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7205 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7205 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 1656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:20:34,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7205 Valid, 251 Invalid, 1656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 12:20:34,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7726 states. [2022-12-13 12:20:34,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7726 to 5795. [2022-12-13 12:20:34,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5795 states, 5791 states have (on average 1.1011915040580211) internal successors, (6377), 5794 states have internal predecessors, (6377), 0 states have call successors, (0), 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 12:20:34,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 6377 transitions. [2022-12-13 12:20:34,714 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 6377 transitions. Word has length 976 [2022-12-13 12:20:34,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:20:34,715 INFO L495 AbstractCegarLoop]: Abstraction has 5795 states and 6377 transitions. [2022-12-13 12:20:34,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 386 states, 386 states have (on average 2.6373056994818653) internal successors, (1018), 386 states have internal predecessors, (1018), 0 states have call successors, (0), 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 12:20:34,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 6377 transitions. [2022-12-13 12:20:34,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2901 [2022-12-13 12:20:34,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:20:34,763 INFO L195 NwaCegarLoop]: trace histogram [573, 573, 573, 573, 573, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-12-13 12:20:34,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 12:20:34,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 12:20:34,965 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:20:34,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:34,967 INFO L85 PathProgramCache]: Analyzing trace with hash 874347063, now seen corresponding path program 2 times [2022-12-13 12:20:34,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:34,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122970570] [2022-12-13 12:20:34,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:34,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:20:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 821136 backedges. 0 proven. 548388 refuted. 0 times theorem prover too weak. 272748 trivial. 0 not checked. [2022-12-13 12:20:37,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:20:37,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122970570] [2022-12-13 12:20:37,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122970570] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:20:37,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089292707] [2022-12-13 12:20:37,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:20:37,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:20:37,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:20:37,382 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:20:37,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d685159-cecb-4068-8c29-57b1f52e81ec/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 12:20:37,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 12:20:37,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:20:37,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 4677 conjuncts, 384 conjunts are in the unsatisfiable core [2022-12-13 12:20:37,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:21:05,983 INFO L134 CoverageAnalysis]: Checked inductivity of 821136 backedges. 365578 proven. 90916 refuted. 0 times theorem prover too weak. 364642 trivial. 0 not checked. [2022-12-13 12:21:05,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:22:17,541 INFO L134 CoverageAnalysis]: Checked inductivity of 821136 backedges. 365578 proven. 90916 refuted. 0 times theorem prover too weak. 364642 trivial. 0 not checked. [2022-12-13 12:22:17,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089292707] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:22:17,541 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:22:17,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 385, 385] total 771 [2022-12-13 12:22:17,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552935554] [2022-12-13 12:22:17,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:22:17,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 771 states [2022-12-13 12:22:17,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:22:17,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 771 interpolants. [2022-12-13 12:22:17,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147849, Invalid=445821, Unknown=0, NotChecked=0, Total=593670 [2022-12-13 12:22:17,588 INFO L87 Difference]: Start difference. First operand 5795 states and 6377 transitions. Second operand has 771 states, 771 states have (on average 2.5732814526588847) internal successors, (1984), 771 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)