./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-crafted/xor4.i --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_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/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_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-crafted/xor4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/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_c4b11a03-db08-4d67-b279-ea99d91c595a/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 90b7e6947bda838aad0c5e01877b9a712c46c1a2dc1a2af9f1fb1c6266593b6a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:32:54,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:32:54,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:32:54,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:32:54,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:32:54,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:32:54,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:32:54,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:32:54,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:32:54,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:32:54,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:32:54,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:32:54,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:32:54,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:32:54,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:32:54,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:32:54,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:32:54,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:32:54,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:32:54,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:32:54,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:32:54,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:32:54,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:32:54,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:32:54,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:32:54,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:32:54,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:32:54,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:32:54,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:32:54,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:32:54,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:32:54,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:32:54,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:32:54,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:32:54,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:32:54,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:32:54,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:32:54,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:32:54,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:32:54,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:32:54,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:32:54,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 17:32:54,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:32:54,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:32:54,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:32:54,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:32:54,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:32:54,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:32:54,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:32:54,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:32:54,535 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:32:54,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:32:54,535 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:32:54,536 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:32:54,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:32:54,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:32:54,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:32:54,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:32:54,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:32:54,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:32:54,536 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:32:54,536 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:32:54,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:32:54,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:32:54,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:32:54,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:32:54,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:32:54,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:32:54,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:32:54,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:32:54,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:32:54,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:32:54,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:32:54,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:32:54,538 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:32:54,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:32:54,538 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:32:54,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:32:54,538 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:32:54,538 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_c4b11a03-db08-4d67-b279-ea99d91c595a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90b7e6947bda838aad0c5e01877b9a712c46c1a2dc1a2af9f1fb1c6266593b6a [2022-12-13 17:32:54,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:32:54,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:32:54,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:32:54,734 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:32:54,735 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:32:54,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/array-crafted/xor4.i [2022-12-13 17:32:57,340 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:32:57,492 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:32:57,492 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/sv-benchmarks/c/array-crafted/xor4.i [2022-12-13 17:32:57,496 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/data/5aac33bd6/f5da9401dc0343a98263c6c91443c760/FLAGbee276a6f [2022-12-13 17:32:57,915 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/data/5aac33bd6/f5da9401dc0343a98263c6c91443c760 [2022-12-13 17:32:57,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:32:57,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:32:57,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:32:57,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:32:57,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:32:57,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:32:57" (1/1) ... [2022-12-13 17:32:57,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a3188d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:57, skipping insertion in model container [2022-12-13 17:32:57,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:32:57" (1/1) ... [2022-12-13 17:32:57,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:32:57,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:32:58,056 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_c4b11a03-db08-4d67-b279-ea99d91c595a/sv-benchmarks/c/array-crafted/xor4.i[1303,1316] [2022-12-13 17:32:58,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:32:58,063 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:32:58,078 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_c4b11a03-db08-4d67-b279-ea99d91c595a/sv-benchmarks/c/array-crafted/xor4.i[1303,1316] [2022-12-13 17:32:58,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:32:58,088 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:32:58,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58 WrapperNode [2022-12-13 17:32:58,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:32:58,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:32:58,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:32:58,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:32:58,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (1/1) ... [2022-12-13 17:32:58,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (1/1) ... [2022-12-13 17:32:58,113 INFO L138 Inliner]: procedures = 16, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-12-13 17:32:58,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:32:58,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:32:58,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:32:58,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:32:58,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (1/1) ... [2022-12-13 17:32:58,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (1/1) ... [2022-12-13 17:32:58,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (1/1) ... [2022-12-13 17:32:58,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (1/1) ... [2022-12-13 17:32:58,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (1/1) ... [2022-12-13 17:32:58,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (1/1) ... [2022-12-13 17:32:58,130 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (1/1) ... [2022-12-13 17:32:58,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (1/1) ... [2022-12-13 17:32:58,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:32:58,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:32:58,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:32:58,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:32:58,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (1/1) ... [2022-12-13 17:32:58,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:32:58,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:32:58,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:32:58,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:32:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:32:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:32:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:32:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:32:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:32:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:32:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:32:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure xor [2022-12-13 17:32:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure xor [2022-12-13 17:32:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:32:58,246 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:32:58,247 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:32:58,388 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:32:58,395 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:32:58,395 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 17:32:58,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:32:58 BoogieIcfgContainer [2022-12-13 17:32:58,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:32:58,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:32:58,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:32:58,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:32:58,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:32:57" (1/3) ... [2022-12-13 17:32:58,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4348e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:32:58, skipping insertion in model container [2022-12-13 17:32:58,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:32:58" (2/3) ... [2022-12-13 17:32:58,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4348e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:32:58, skipping insertion in model container [2022-12-13 17:32:58,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:32:58" (3/3) ... [2022-12-13 17:32:58,407 INFO L112 eAbstractionObserver]: Analyzing ICFG xor4.i [2022-12-13 17:32:58,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:32:58,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 17:32:58,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:32:58,489 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;@7f5c87f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:32:58,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 17:32:58,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 39 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 17:32:58,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 17:32:58,498 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:32:58,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:32:58,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:32:58,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:32:58,509 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-12-13 17:32:58,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:32:58,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386065876] [2022-12-13 17:32:58,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:32:58,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:32:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:32:58,679 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 17:32:58,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:32:58,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386065876] [2022-12-13 17:32:58,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386065876] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:32:58,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:32:58,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:32:58,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370904015] [2022-12-13 17:32:58,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:32:58,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:32:58,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:32:58,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:32:58,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:32:58,711 INFO L87 Difference]: Start difference. First operand has 44 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 39 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:32:58,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:32:58,764 INFO L93 Difference]: Finished difference Result 86 states and 111 transitions. [2022-12-13 17:32:58,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:32:58,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-13 17:32:58,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:32:58,772 INFO L225 Difference]: With dead ends: 86 [2022-12-13 17:32:58,772 INFO L226 Difference]: Without dead ends: 42 [2022-12-13 17:32:58,774 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 17:32:58,776 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 3 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 137 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 17:32:58,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 137 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:32:58,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-13 17:32:58,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-12-13 17:32:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 38 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:32:58,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-12-13 17:32:58,806 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 5 [2022-12-13 17:32:58,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:32:58,806 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-12-13 17:32:58,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:32:58,806 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-12-13 17:32:58,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 17:32:58,807 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:32:58,807 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-12-13 17:32:58,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:32:58,807 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:32:58,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:32:58,808 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-12-13 17:32:58,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:32:58,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105336959] [2022-12-13 17:32:58,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:32:58,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:32:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:32:58,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:32:58,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:32:58,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105336959] [2022-12-13 17:32:58,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105336959] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:32:58,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669499901] [2022-12-13 17:32:58,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:32:58,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:32:58,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:32:58,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:32:58,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 17:32:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:32:58,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:32:58,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:32:59,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:32:59,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:32:59,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669499901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:32:59,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:32:59,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 17:32:59,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398773280] [2022-12-13 17:32:59,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:32:59,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:32:59,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:32:59,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:32:59,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:32:59,018 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 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 17:32:59,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:32:59,060 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2022-12-13 17:32:59,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:32:59,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-12-13 17:32:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:32:59,061 INFO L225 Difference]: With dead ends: 42 [2022-12-13 17:32:59,061 INFO L226 Difference]: Without dead ends: 41 [2022-12-13 17:32:59,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 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 17:32:59,063 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 39 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:32:59,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 96 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:32:59,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-13 17:32:59,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-12-13 17:32:59,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 37 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:32:59,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2022-12-13 17:32:59,069 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 9 [2022-12-13 17:32:59,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:32:59,069 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2022-12-13 17:32:59,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 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 17:32:59,070 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2022-12-13 17:32:59,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 17:32:59,070 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:32:59,070 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-13 17:32:59,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 17:32:59,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:32:59,273 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:32:59,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:32:59,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-12-13 17:32:59,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:32:59,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811968697] [2022-12-13 17:32:59,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:32:59,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:32:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:32:59,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 17:32:59,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:32:59,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811968697] [2022-12-13 17:32:59,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811968697] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:32:59,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:32:59,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:32:59,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892140115] [2022-12-13 17:32:59,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:32:59,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:32:59,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:32:59,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:32:59,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:32:59,427 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:32:59,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:32:59,447 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-12-13 17:32:59,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:32:59,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-13 17:32:59,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:32:59,448 INFO L225 Difference]: With dead ends: 41 [2022-12-13 17:32:59,448 INFO L226 Difference]: Without dead ends: 40 [2022-12-13 17:32:59,449 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 17:32:59,450 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:32:59,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 114 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:32:59,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-13 17:32:59,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2022-12-13 17:32:59,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 33 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:32:59,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2022-12-13 17:32:59,454 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 10 [2022-12-13 17:32:59,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:32:59,454 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2022-12-13 17:32:59,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:32:59,454 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2022-12-13 17:32:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 17:32:59,455 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:32:59,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:32:59,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:32:59,455 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:32:59,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:32:59,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1711969525, now seen corresponding path program 1 times [2022-12-13 17:32:59,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:32:59,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143709295] [2022-12-13 17:32:59,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:32:59,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:32:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:32:59,514 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 17:32:59,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:32:59,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143709295] [2022-12-13 17:32:59,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143709295] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:32:59,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313991092] [2022-12-13 17:32:59,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:32:59,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:32:59,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:32:59,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:32:59,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 17:32:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:32:59,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 17:32:59,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:32:59,582 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 17:32:59,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:32:59,611 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 17:32:59,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313991092] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:32:59,611 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:32:59,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-13 17:32:59,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647797085] [2022-12-13 17:32:59,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:32:59,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:32:59,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:32:59,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:32:59,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:32:59,613 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:32:59,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:32:59,656 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2022-12-13 17:32:59,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:32:59,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-13 17:32:59,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:32:59,657 INFO L225 Difference]: With dead ends: 75 [2022-12-13 17:32:59,657 INFO L226 Difference]: Without dead ends: 45 [2022-12-13 17:32:59,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:32:59,659 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 8 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:32:59,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 302 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:32:59,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-12-13 17:32:59,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-12-13 17:32:59,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 41 states have internal predecessors, (47), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:32:59,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2022-12-13 17:32:59,665 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 14 [2022-12-13 17:32:59,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:32:59,665 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2022-12-13 17:32:59,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:32:59,665 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2022-12-13 17:32:59,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 17:32:59,665 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:32:59,666 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:32:59,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 17:32:59,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:32:59,868 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:32:59,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:32:59,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1438705917, now seen corresponding path program 2 times [2022-12-13 17:32:59,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:32:59,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274178777] [2022-12-13 17:32:59,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:32:59,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:32:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 17:33:00,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:00,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274178777] [2022-12-13 17:33:00,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274178777] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:33:00,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:33:00,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:33:00,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041554510] [2022-12-13 17:33:00,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:33:00,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:33:00,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:00,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:33:00,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:33:00,058 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:33:00,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:00,079 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2022-12-13 17:33:00,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:33:00,080 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-13 17:33:00,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:00,080 INFO L225 Difference]: With dead ends: 82 [2022-12-13 17:33:00,080 INFO L226 Difference]: Without dead ends: 53 [2022-12-13 17:33:00,081 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 17:33:00,081 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 8 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:33:00,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 114 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:33:00,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-13 17:33:00,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-12-13 17:33:00,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 49 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:00,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2022-12-13 17:33:00,086 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 22 [2022-12-13 17:33:00,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:00,086 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2022-12-13 17:33:00,086 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:33:00,086 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2022-12-13 17:33:00,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-13 17:33:00,086 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:00,087 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:00,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:33:00,087 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:00,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:00,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1014779690, now seen corresponding path program 1 times [2022-12-13 17:33:00,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:00,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949686742] [2022-12-13 17:33:00,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:00,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:00,179 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:33:00,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:00,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949686742] [2022-12-13 17:33:00,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949686742] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:33:00,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581152925] [2022-12-13 17:33:00,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:00,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:33:00,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:33:00,181 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:33:00,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 17:33:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:00,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 17:33:00,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:33:00,258 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:33:00,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:33:00,327 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:33:00,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581152925] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:33:00,327 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:33:00,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-12-13 17:33:00,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006821220] [2022-12-13 17:33:00,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:33:00,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 17:33:00,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:00,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 17:33:00,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-12-13 17:33:00,329 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:33:00,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:00,411 INFO L93 Difference]: Finished difference Result 107 states and 130 transitions. [2022-12-13 17:33:00,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:33:00,411 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-13 17:33:00,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:00,412 INFO L225 Difference]: With dead ends: 107 [2022-12-13 17:33:00,412 INFO L226 Difference]: Without dead ends: 69 [2022-12-13 17:33:00,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-12-13 17:33:00,413 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 36 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:33:00,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 153 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:33:00,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-12-13 17:33:00,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-12-13 17:33:00,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 59 states have (on average 1.2542372881355932) internal successors, (74), 65 states have internal predecessors, (74), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:00,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-12-13 17:33:00,418 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 28 [2022-12-13 17:33:00,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:00,418 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-12-13 17:33:00,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:33:00,418 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2022-12-13 17:33:00,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 17:33:00,419 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:00,419 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:00,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 17:33:00,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 17:33:00,620 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:00,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:00,620 INFO L85 PathProgramCache]: Analyzing trace with hash 92173542, now seen corresponding path program 2 times [2022-12-13 17:33:00,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:00,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057784782] [2022-12-13 17:33:00,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:00,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:00,855 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:33:00,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:00,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057784782] [2022-12-13 17:33:00,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057784782] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:33:00,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573275823] [2022-12-13 17:33:00,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 17:33:00,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:33:00,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:33:00,857 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:33:00,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 17:33:00,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 17:33:00,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:33:00,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 17:33:00,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:33:00,984 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:33:00,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:33:01,178 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:33:01,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573275823] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:33:01,178 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:33:01,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-12-13 17:33:01,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643158704] [2022-12-13 17:33:01,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:33:01,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-13 17:33:01,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:01,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-13 17:33:01,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 17:33:01,180 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:33:01,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:01,410 INFO L93 Difference]: Finished difference Result 139 states and 166 transitions. [2022-12-13 17:33:01,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 17:33:01,411 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-12-13 17:33:01,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:01,411 INFO L225 Difference]: With dead ends: 139 [2022-12-13 17:33:01,411 INFO L226 Difference]: Without dead ends: 101 [2022-12-13 17:33:01,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 17:33:01,413 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 64 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:33:01,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 302 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:33:01,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-12-13 17:33:01,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-12-13 17:33:01,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 91 states have (on average 1.164835164835165) internal successors, (106), 97 states have internal predecessors, (106), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:01,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 111 transitions. [2022-12-13 17:33:01,422 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 111 transitions. Word has length 44 [2022-12-13 17:33:01,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:01,422 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 111 transitions. [2022-12-13 17:33:01,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:33:01,423 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 111 transitions. [2022-12-13 17:33:01,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 17:33:01,424 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:01,424 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:01,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 17:33:01,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:33:01,626 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:01,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:01,626 INFO L85 PathProgramCache]: Analyzing trace with hash 259366150, now seen corresponding path program 3 times [2022-12-13 17:33:01,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:01,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113014569] [2022-12-13 17:33:01,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:01,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:02,246 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:33:02,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:02,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113014569] [2022-12-13 17:33:02,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113014569] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:33:02,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829266769] [2022-12-13 17:33:02,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 17:33:02,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:33:02,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:33:02,248 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:33:02,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 17:33:02,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 17:33:02,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:33:02,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:33:02,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:33:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-12-13 17:33:02,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:33:02,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829266769] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:33:02,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:33:02,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2022-12-13 17:33:02,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837606657] [2022-12-13 17:33:02,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:33:02,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:33:02,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:02,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:33:02,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 17:33:02,377 INFO L87 Difference]: Start difference. First operand 101 states and 111 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:33:02,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:02,423 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2022-12-13 17:33:02,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:33:02,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-12-13 17:33:02,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:02,425 INFO L225 Difference]: With dead ends: 101 [2022-12-13 17:33:02,425 INFO L226 Difference]: Without dead ends: 100 [2022-12-13 17:33:02,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1173, Unknown=0, NotChecked=0, Total=1482 [2022-12-13 17:33:02,427 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 20 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:33:02,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 188 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:33:02,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-13 17:33:02,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-12-13 17:33:02,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 91 states have (on average 1.1538461538461537) internal successors, (105), 96 states have internal predecessors, (105), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:02,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2022-12-13 17:33:02,433 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 76 [2022-12-13 17:33:02,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:02,433 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2022-12-13 17:33:02,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:33:02,434 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2022-12-13 17:33:02,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 17:33:02,434 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:02,435 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:02,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 17:33:02,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:33:02,636 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:02,636 INFO L85 PathProgramCache]: Analyzing trace with hash -549583823, now seen corresponding path program 1 times [2022-12-13 17:33:02,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:02,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409003704] [2022-12-13 17:33:02,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:02,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:02,822 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-12-13 17:33:02,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:02,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409003704] [2022-12-13 17:33:02,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409003704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:33:02,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:33:02,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:33:02,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917408056] [2022-12-13 17:33:02,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:33:02,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:33:02,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:02,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:33:02,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:33:02,824 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:33:02,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:02,835 INFO L93 Difference]: Finished difference Result 100 states and 110 transitions. [2022-12-13 17:33:02,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:33:02,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-12-13 17:33:02,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:02,837 INFO L225 Difference]: With dead ends: 100 [2022-12-13 17:33:02,837 INFO L226 Difference]: Without dead ends: 97 [2022-12-13 17:33:02,837 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 17:33:02,838 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 7 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:33:02,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 102 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:33:02,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-12-13 17:33:02,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 90. [2022-12-13 17:33:02,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.108433734939759) internal successors, (92), 86 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:02,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2022-12-13 17:33:02,846 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 77 [2022-12-13 17:33:02,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:02,846 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2022-12-13 17:33:02,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:33:02,846 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2022-12-13 17:33:02,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-13 17:33:02,848 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:02,848 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:02,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:33:02,848 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:02,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:02,849 INFO L85 PathProgramCache]: Analyzing trace with hash -597725044, now seen corresponding path program 1 times [2022-12-13 17:33:02,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:02,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315453452] [2022-12-13 17:33:02,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:02,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:02,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 17:33:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 17:33:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:02,976 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-12-13 17:33:02,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:02,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315453452] [2022-12-13 17:33:02,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315453452] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:33:02,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420958935] [2022-12-13 17:33:02,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:02,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:33:02,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:33:02,977 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:33:02,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 17:33:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:03,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:33:03,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:33:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2022-12-13 17:33:03,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:33:03,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420958935] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:33:03,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:33:03,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-12-13 17:33:03,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328190669] [2022-12-13 17:33:03,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:33:03,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:33:03,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:03,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:33:03,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:33:03,081 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:03,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:03,096 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2022-12-13 17:33:03,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:33:03,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2022-12-13 17:33:03,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:03,097 INFO L225 Difference]: With dead ends: 99 [2022-12-13 17:33:03,097 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 17:33:03,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 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 17:33:03,098 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 7 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:33:03,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 62 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:33:03,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 17:33:03,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 92. [2022-12-13 17:33:03,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.1058823529411765) internal successors, (94), 88 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2022-12-13 17:33:03,105 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 91 [2022-12-13 17:33:03,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:03,107 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2022-12-13 17:33:03,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:03,107 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2022-12-13 17:33:03,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 17:33:03,108 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:03,108 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:03,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 17:33:03,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 17:33:03,309 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:03,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:03,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1349607115, now seen corresponding path program 1 times [2022-12-13 17:33:03,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:03,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409051827] [2022-12-13 17:33:03,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:03,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:03,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 17:33:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:03,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 17:33:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:03,419 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-12-13 17:33:03,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:03,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409051827] [2022-12-13 17:33:03,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409051827] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:33:03,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363716480] [2022-12-13 17:33:03,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:03,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:33:03,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:33:03,420 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:33:03,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 17:33:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:03,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:33:03,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:33:03,522 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2022-12-13 17:33:03,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:33:03,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363716480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:33:03,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:33:03,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-12-13 17:33:03,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375890933] [2022-12-13 17:33:03,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:33:03,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:33:03,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:03,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:33:03,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:33:03,524 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:03,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:03,535 INFO L93 Difference]: Finished difference Result 99 states and 105 transitions. [2022-12-13 17:33:03,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:33:03,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 92 [2022-12-13 17:33:03,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:03,536 INFO L225 Difference]: With dead ends: 99 [2022-12-13 17:33:03,536 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 17:33:03,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 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 17:33:03,537 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:33:03,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 63 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:33:03,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 17:33:03,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 93. [2022-12-13 17:33:03,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 86 states have (on average 1.1046511627906976) internal successors, (95), 89 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:03,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 99 transitions. [2022-12-13 17:33:03,541 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 99 transitions. Word has length 92 [2022-12-13 17:33:03,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:03,541 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 99 transitions. [2022-12-13 17:33:03,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:03,541 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 99 transitions. [2022-12-13 17:33:03,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 17:33:03,542 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:03,542 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:03,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 17:33:03,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 17:33:03,743 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:03,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:03,743 INFO L85 PathProgramCache]: Analyzing trace with hash 107688023, now seen corresponding path program 1 times [2022-12-13 17:33:03,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:03,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732748759] [2022-12-13 17:33:03,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:03,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:03,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 17:33:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 17:33:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-12-13 17:33:03,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:03,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732748759] [2022-12-13 17:33:03,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732748759] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:33:03,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521392015] [2022-12-13 17:33:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:03,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:33:03,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:33:03,835 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:33:03,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 17:33:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:03,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-13 17:33:03,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:33:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 17:33:04,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:33:04,983 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 17:33:04,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521392015] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:33:04,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:33:04,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2022-12-13 17:33:04,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251013347] [2022-12-13 17:33:04,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:33:04,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-12-13 17:33:04,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:04,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-12-13 17:33:04,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2022-12-13 17:33:04,990 INFO L87 Difference]: Start difference. First operand 93 states and 99 transitions. Second operand has 67 states, 67 states have (on average 2.4776119402985075) internal successors, (166), 67 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 17:33:05,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:05,645 INFO L93 Difference]: Finished difference Result 202 states and 238 transitions. [2022-12-13 17:33:05,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-12-13 17:33:05,646 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.4776119402985075) internal successors, (166), 67 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 94 [2022-12-13 17:33:05,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:05,646 INFO L225 Difference]: With dead ends: 202 [2022-12-13 17:33:05,646 INFO L226 Difference]: Without dead ends: 172 [2022-12-13 17:33:05,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2022-12-13 17:33:05,649 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 224 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:33:05,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 325 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:33:05,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-12-13 17:33:05,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 165. [2022-12-13 17:33:05,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 158 states have (on average 1.0759493670886076) internal successors, (170), 161 states have internal predecessors, (170), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:05,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 174 transitions. [2022-12-13 17:33:05,656 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 174 transitions. Word has length 94 [2022-12-13 17:33:05,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:05,657 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 174 transitions. [2022-12-13 17:33:05,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.4776119402985075) internal successors, (166), 67 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 17:33:05,657 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 174 transitions. [2022-12-13 17:33:05,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-12-13 17:33:05,658 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:05,659 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:05,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 17:33:05,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:33:05,861 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:05,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:05,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1657551561, now seen corresponding path program 2 times [2022-12-13 17:33:05,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:05,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641755727] [2022-12-13 17:33:05,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:05,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:06,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 17:33:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:06,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 17:33:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-12-13 17:33:06,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:06,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641755727] [2022-12-13 17:33:06,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641755727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:33:06,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:33:06,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:33:06,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384710858] [2022-12-13 17:33:06,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:33:06,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:33:06,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:06,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:33:06,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:33:06,011 INFO L87 Difference]: Start difference. First operand 165 states and 174 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:06,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:06,030 INFO L93 Difference]: Finished difference Result 170 states and 179 transitions. [2022-12-13 17:33:06,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:33:06,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 170 [2022-12-13 17:33:06,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:06,031 INFO L225 Difference]: With dead ends: 170 [2022-12-13 17:33:06,031 INFO L226 Difference]: Without dead ends: 168 [2022-12-13 17:33:06,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 17:33:06,032 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:33:06,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 90 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:33:06,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-12-13 17:33:06,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-12-13 17:33:06,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 161 states have (on average 1.0745341614906831) internal successors, (173), 164 states have internal predecessors, (173), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:06,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 177 transitions. [2022-12-13 17:33:06,036 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 177 transitions. Word has length 170 [2022-12-13 17:33:06,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:06,037 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 177 transitions. [2022-12-13 17:33:06,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:06,037 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 177 transitions. [2022-12-13 17:33:06,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-13 17:33:06,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:06,038 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:06,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 17:33:06,038 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:06,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash -879481454, now seen corresponding path program 1 times [2022-12-13 17:33:06,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:06,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556942308] [2022-12-13 17:33:06,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:06,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 17:33:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 17:33:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:06,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-12-13 17:33:06,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:06,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556942308] [2022-12-13 17:33:06,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556942308] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:33:06,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107628142] [2022-12-13 17:33:06,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:06,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:33:06,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:33:06,158 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:33:06,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 17:33:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:06,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 64 conjunts are in the unsatisfiable core [2022-12-13 17:33:06,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:33:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-12-13 17:33:07,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:33:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-12-13 17:33:09,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107628142] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:33:09,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:33:09,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 65, 65] total 131 [2022-12-13 17:33:09,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418255736] [2022-12-13 17:33:09,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:33:09,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2022-12-13 17:33:09,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:09,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2022-12-13 17:33:09,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4166, Invalid=12864, Unknown=0, NotChecked=0, Total=17030 [2022-12-13 17:33:09,614 INFO L87 Difference]: Start difference. First operand 168 states and 177 transitions. Second operand has 131 states, 131 states have (on average 2.2748091603053435) internal successors, (298), 131 states have internal predecessors, (298), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 17:33:11,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:11,613 INFO L93 Difference]: Finished difference Result 345 states and 396 transitions. [2022-12-13 17:33:11,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-12-13 17:33:11,613 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 131 states have (on average 2.2748091603053435) internal successors, (298), 131 states have internal predecessors, (298), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 173 [2022-12-13 17:33:11,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:11,614 INFO L225 Difference]: With dead ends: 345 [2022-12-13 17:33:11,614 INFO L226 Difference]: Without dead ends: 304 [2022-12-13 17:33:11,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7657 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=10185, Invalid=27257, Unknown=0, NotChecked=0, Total=37442 [2022-12-13 17:33:11,622 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 443 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:33:11,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 432 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:33:11,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-12-13 17:33:11,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 298. [2022-12-13 17:33:11,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 291 states have (on average 1.041237113402062) internal successors, (303), 294 states have internal predecessors, (303), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:11,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 307 transitions. [2022-12-13 17:33:11,631 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 307 transitions. Word has length 173 [2022-12-13 17:33:11,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:11,631 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 307 transitions. [2022-12-13 17:33:11,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 131 states have (on average 2.2748091603053435) internal successors, (298), 131 states have internal predecessors, (298), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 17:33:11,632 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 307 transitions. [2022-12-13 17:33:11,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-12-13 17:33:11,636 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:11,636 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:11,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 17:33:11,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 17:33:11,838 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:11,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:11,839 INFO L85 PathProgramCache]: Analyzing trace with hash 611124591, now seen corresponding path program 1 times [2022-12-13 17:33:11,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:11,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192992147] [2022-12-13 17:33:11,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:11,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:12,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-12-13 17:33:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:12,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-12-13 17:33:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:12,065 INFO L134 CoverageAnalysis]: Checked inductivity of 7927 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7925 trivial. 0 not checked. [2022-12-13 17:33:12,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:12,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192992147] [2022-12-13 17:33:12,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192992147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:33:12,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:33:12,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:33:12,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669485661] [2022-12-13 17:33:12,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:33:12,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:33:12,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:12,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:33:12,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:33:12,067 INFO L87 Difference]: Start difference. First operand 298 states and 307 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:12,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:12,078 INFO L93 Difference]: Finished difference Result 298 states and 307 transitions. [2022-12-13 17:33:12,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:33:12,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 302 [2022-12-13 17:33:12,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:12,080 INFO L225 Difference]: With dead ends: 298 [2022-12-13 17:33:12,080 INFO L226 Difference]: Without dead ends: 297 [2022-12-13 17:33:12,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 17:33:12,081 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 6 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 58 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 17:33:12,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 58 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:33:12,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-12-13 17:33:12,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2022-12-13 17:33:12,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 291 states have (on average 1.0378006872852235) internal successors, (302), 293 states have internal predecessors, (302), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:12,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 306 transitions. [2022-12-13 17:33:12,090 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 306 transitions. Word has length 302 [2022-12-13 17:33:12,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:12,091 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 306 transitions. [2022-12-13 17:33:12,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:12,091 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 306 transitions. [2022-12-13 17:33:12,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-12-13 17:33:12,095 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:12,095 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:12,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 17:33:12,096 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:12,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:12,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1119785455, now seen corresponding path program 1 times [2022-12-13 17:33:12,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:12,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581305802] [2022-12-13 17:33:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:12,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:12,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-12-13 17:33:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:12,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-12-13 17:33:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:12,251 INFO L134 CoverageAnalysis]: Checked inductivity of 7929 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7926 trivial. 0 not checked. [2022-12-13 17:33:12,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:12,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581305802] [2022-12-13 17:33:12,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581305802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:33:12,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:33:12,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:33:12,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401362994] [2022-12-13 17:33:12,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:33:12,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:33:12,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:12,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:33:12,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:33:12,253 INFO L87 Difference]: Start difference. First operand 297 states and 306 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:12,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:12,271 INFO L93 Difference]: Finished difference Result 297 states and 306 transitions. [2022-12-13 17:33:12,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:33:12,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 304 [2022-12-13 17:33:12,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:12,273 INFO L225 Difference]: With dead ends: 297 [2022-12-13 17:33:12,273 INFO L226 Difference]: Without dead ends: 295 [2022-12-13 17:33:12,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 17:33:12,274 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 6 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 81 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 17:33:12,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 81 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:33:12,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-12-13 17:33:12,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 293. [2022-12-13 17:33:12,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 289 states have (on average 1.0311418685121108) internal successors, (298), 289 states have internal predecessors, (298), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:33:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 302 transitions. [2022-12-13 17:33:12,283 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 302 transitions. Word has length 304 [2022-12-13 17:33:12,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:12,283 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 302 transitions. [2022-12-13 17:33:12,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:12,284 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 302 transitions. [2022-12-13 17:33:12,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-12-13 17:33:12,287 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:33:12,288 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:12,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 17:33:12,288 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 17:33:12,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:33:12,288 INFO L85 PathProgramCache]: Analyzing trace with hash -353610666, now seen corresponding path program 1 times [2022-12-13 17:33:12,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:33:12,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137788576] [2022-12-13 17:33:12,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:33:12,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:33:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:12,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-12-13 17:33:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:12,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-12-13 17:33:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:12,445 INFO L134 CoverageAnalysis]: Checked inductivity of 7930 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7925 trivial. 0 not checked. [2022-12-13 17:33:12,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:12,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137788576] [2022-12-13 17:33:12,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137788576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:33:12,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:33:12,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:33:12,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807394796] [2022-12-13 17:33:12,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:33:12,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:33:12,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:12,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:33:12,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:33:12,446 INFO L87 Difference]: Start difference. First operand 293 states and 302 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:12,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:33:12,460 INFO L93 Difference]: Finished difference Result 293 states and 302 transitions. [2022-12-13 17:33:12,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:33:12,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 305 [2022-12-13 17:33:12,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:33:12,460 INFO L225 Difference]: With dead ends: 293 [2022-12-13 17:33:12,460 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 17:33:12,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 17:33:12,461 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:33:12,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 81 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:33:12,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 17:33:12,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 17:33:12,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:33:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 17:33:12,462 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2022-12-13 17:33:12,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:33:12,462 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 17:33:12,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 17:33:12,462 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 17:33:12,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 17:33:12,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-13 17:33:12,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-13 17:33:12,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-13 17:33:12,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-13 17:33:12,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-13 17:33:12,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-13 17:33:12,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-13 17:33:12,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-13 17:33:12,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 17:33:12,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 17:33:12,518 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-12-13 17:33:12,518 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 54) no Hoare annotation was computed. [2022-12-13 17:33:12,518 INFO L899 garLoopResultBuilder]: For program point L52-2(lines 52 54) no Hoare annotation was computed. [2022-12-13 17:33:12,519 INFO L895 garLoopResultBuilder]: At program point L44(line 44) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~1#1|) [2022-12-13 17:33:12,519 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-12-13 17:33:12,519 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 29 56) the Hoare annotation is: true [2022-12-13 17:33:12,519 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 17:33:12,519 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-13 17:33:12,519 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-12-13 17:33:12,519 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 17:33:12,519 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-12-13 17:33:12,519 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 39) no Hoare annotation was computed. [2022-12-13 17:33:12,519 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2022-12-13 17:33:12,520 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2022-12-13 17:33:12,520 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-13 17:33:12,520 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 17:33:12,520 INFO L895 garLoopResultBuilder]: At program point L37-5(lines 37 39) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~1#1| 0) (<= 1 |ULTIMATE.start_main_~i~1#1|)) [2022-12-13 17:33:12,520 INFO L895 garLoopResultBuilder]: At program point L37-6(lines 37 39) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~1#1|) [2022-12-13 17:33:12,520 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-12-13 17:33:12,520 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~1#1|) [2022-12-13 17:33:12,520 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-12-13 17:33:12,520 INFO L899 garLoopResultBuilder]: For program point L46-2(lines 46 48) no Hoare annotation was computed. [2022-12-13 17:33:12,520 INFO L899 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2022-12-13 17:33:12,520 INFO L899 garLoopResultBuilder]: For program point L46-4(line 46) no Hoare annotation was computed. [2022-12-13 17:33:12,520 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 17:33:12,520 INFO L895 garLoopResultBuilder]: At program point L46-5(lines 46 48) the Hoare annotation is: (and (<= 0 (+ 2147483649 |ULTIMATE.start_main_~i~2#1|)) (<= 1 |ULTIMATE.start_main_~i~1#1|)) [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point L46-6(lines 46 48) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 25) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 25) the Hoare annotation is: (or (= xor_~i~0 1) (<= 2 xor_~i~0)) [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point L23-6(lines 23 25) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 18 27) the Hoare annotation is: true [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point xorFINAL(lines 18 27) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point L24-2(line 24) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point L24-6(line 24) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-13 17:33:12,521 INFO L899 garLoopResultBuilder]: For program point xorEXIT(lines 18 27) no Hoare annotation was computed. [2022-12-13 17:33:12,524 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:33:12,526 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:33:12,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:33:12 BoogieIcfgContainer [2022-12-13 17:33:12,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:33:12,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:33:12,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:33:12,536 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:33:12,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:32:58" (3/4) ... [2022-12-13 17:33:12,539 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:33:12,544 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xor [2022-12-13 17:33:12,546 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-12-13 17:33:12,547 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-13 17:33:12,547 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 17:33:12,547 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:33:12,547 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:33:12,571 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:33:12,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:33:12,571 INFO L158 Benchmark]: Toolchain (without parser) took 14652.96ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 83.1MB in the beginning and 55.4MB in the end (delta: 27.7MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. [2022-12-13 17:33:12,571 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:33:12,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.59ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 72.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 17:33:12,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.10ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 70.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:33:12,572 INFO L158 Benchmark]: Boogie Preprocessor took 17.91ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 69.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:33:12,572 INFO L158 Benchmark]: RCFGBuilder took 265.56ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 56.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 17:33:12,573 INFO L158 Benchmark]: TraceAbstraction took 14135.28ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 55.9MB in the beginning and 58.6MB in the end (delta: -2.7MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2022-12-13 17:33:12,573 INFO L158 Benchmark]: Witness Printer took 34.79ms. Allocated memory is still 172.0MB. Free memory was 58.6MB in the beginning and 55.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:33:12,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.59ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 72.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.10ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 70.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.91ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 69.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 265.56ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 56.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14135.28ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 55.9MB in the beginning and 58.6MB in the end (delta: -2.7MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. * Witness Printer took 34.79ms. Allocated memory is still 172.0MB. Free memory was 58.6MB in the beginning and 55.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 14.1s, OverallIterations: 17, TraceHistogramMax: 63, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 885 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 883 mSDsluCounter, 2700 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2094 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1207 IncrementalHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 606 mSDtfsCounter, 1207 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1231 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 441 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10435 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=14, InterpolantAutomatonStates: 298, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 36 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 48 PreInvPairs, 122 NumberOfFragments, 34 HoareAnnotationTreeSize, 48 FomulaSimplifications, 582 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 2437 NumberOfCodeBlocks, 2381 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2759 ConstructedInterpolants, 0 QuantifiedInterpolants, 4093 SizeOfPredicates, 61 NumberOfNonLiveVariables, 2185 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 31 InterpolantComputations, 12 PerfectInterpolantSequences, 30947/36399 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 0 <= 2147483649 + i && 1 <= i - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: i == 1 || 2 <= i RESULT: Ultimate proved your program to be correct! [2022-12-13 17:33:12,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4b11a03-db08-4d67-b279-ea99d91c595a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE