./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro --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 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 --- 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-8393723 [2022-11-18 19:37:26,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:37:26,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:37:26,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:37:26,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:37:26,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:37:26,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:37:26,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:37:26,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:37:26,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:37:26,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:37:26,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:37:26,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:37:26,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:37:26,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:37:26,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:37:26,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:37:26,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:37:26,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:37:26,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:37:26,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:37:26,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:37:26,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:37:26,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:37:26,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:37:26,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:37:26,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:37:26,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:37:26,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:37:26,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:37:26,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:37:26,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:37:26,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:37:26,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:37:26,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:37:26,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:37:26,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:37:26,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:37:26,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:37:26,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:37:26,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:37:26,813 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:37:26,846 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:37:26,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:37:26,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:37:26,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:37:26,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:37:26,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:37:26,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:37:26,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:37:26,849 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:37:26,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:37:26,851 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:37:26,851 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:37:26,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:37:26,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:37:26,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:37:26,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:37:26,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:37:26,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:37:26,852 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:37:26,852 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:37:26,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:37:26,853 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:37:26,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:37:26,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:37:26,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:37:26,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:37:26,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:37:26,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:37:26,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:37:26,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:37:26,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:37:26,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:37:26,855 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:37:26,856 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:37:26,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:37:26,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 [2022-11-18 19:37:27,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:37:27,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:37:27,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:37:27,154 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:37:27,155 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:37:27,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2022-11-18 19:37:27,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/data/dd53be84f/8f04265afe9c47d28eca8d0cff361766/FLAGd5d51f852 [2022-11-18 19:37:27,715 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:37:27,715 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2022-11-18 19:37:27,721 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/data/dd53be84f/8f04265afe9c47d28eca8d0cff361766/FLAGd5d51f852 [2022-11-18 19:37:28,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/data/dd53be84f/8f04265afe9c47d28eca8d0cff361766 [2022-11-18 19:37:28,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:37:28,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:37:28,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:37:28,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:37:28,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:37:28,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2652a7e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28, skipping insertion in model container [2022-11-18 19:37:28,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:37:28,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:37:28,318 WARN L234 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_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2022-11-18 19:37:28,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:37:28,370 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:37:28,394 WARN L234 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_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2022-11-18 19:37:28,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:37:28,434 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:37:28,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28 WrapperNode [2022-11-18 19:37:28,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:37:28,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:37:28,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:37:28,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:37:28,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,492 INFO L138 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2022-11-18 19:37:28,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:37:28,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:37:28,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:37:28,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:37:28,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,531 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:37:28,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:37:28,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:37:28,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:37:28,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (1/1) ... [2022-11-18 19:37:28,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:37:28,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:28,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:28,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:37:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:37:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 19:37:28,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 19:37:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:37:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure check [2022-11-18 19:37:28,635 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2022-11-18 19:37:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:37:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:37:28,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:37:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:37:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 19:37:28,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 19:37:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:37:28,753 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:37:28,757 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:37:29,041 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:37:29,046 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:37:29,046 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:37:29,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:29 BoogieIcfgContainer [2022-11-18 19:37:29,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:37:29,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:37:29,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:37:29,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:37:29,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:37:28" (1/3) ... [2022-11-18 19:37:29,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e3a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:29, skipping insertion in model container [2022-11-18 19:37:29,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:28" (2/3) ... [2022-11-18 19:37:29,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e3a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:29, skipping insertion in model container [2022-11-18 19:37:29,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:29" (3/3) ... [2022-11-18 19:37:29,058 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_max_rec_onepoint.c [2022-11-18 19:37:29,079 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:37:29,079 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 19:37:29,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:37:29,142 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;@7064d809, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:37:29,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-18 19:37:29,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 19:37:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:37:29,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:29,157 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:29,158 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:29,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:29,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1346921732, now seen corresponding path program 1 times [2022-11-18 19:37:29,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:29,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746680646] [2022-11-18 19:37:29,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:29,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:29,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:29,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 19:37:29,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:29,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746680646] [2022-11-18 19:37:29,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746680646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:29,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:29,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:37:29,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246151514] [2022-11-18 19:37:29,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:29,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:37:29,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:29,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:37:29,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:37:29,504 INFO L87 Difference]: Start difference. First operand has 46 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:37:29,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:29,544 INFO L93 Difference]: Finished difference Result 89 states and 112 transitions. [2022-11-18 19:37:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:37:29,547 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-11-18 19:37:29,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:29,563 INFO L225 Difference]: With dead ends: 89 [2022-11-18 19:37:29,563 INFO L226 Difference]: Without dead ends: 35 [2022-11-18 19:37:29,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:37:29,574 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:29,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:37:29,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-18 19:37:29,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-18 19:37:29,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 27 states have internal predecessors, (28), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:37:29,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-11-18 19:37:29,628 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2022-11-18 19:37:29,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:29,629 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-11-18 19:37:29,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:37:29,631 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-18 19:37:29,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:37:29,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:29,632 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:29,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:37:29,634 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:29,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:29,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1031497992, now seen corresponding path program 1 times [2022-11-18 19:37:29,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:29,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30856429] [2022-11-18 19:37:29,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:29,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:29,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 19:37:29,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:29,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30856429] [2022-11-18 19:37:29,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30856429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:29,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:29,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:37:29,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839194218] [2022-11-18 19:37:29,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:29,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:37:29,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:29,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:37:29,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:37:29,819 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-18 19:37:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:29,843 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-11-18 19:37:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:37:29,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 16 [2022-11-18 19:37:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:29,845 INFO L225 Difference]: With dead ends: 35 [2022-11-18 19:37:29,845 INFO L226 Difference]: Without dead ends: 34 [2022-11-18 19:37:29,846 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 [2022-11-18 19:37:29,847 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:29,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 58 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:37:29,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-18 19:37:29,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-18 19:37:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 26 states have internal predecessors, (27), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:37:29,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-18 19:37:29,854 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 16 [2022-11-18 19:37:29,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:29,856 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-18 19:37:29,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-18 19:37:29,857 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-18 19:37:29,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:37:29,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:29,858 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:29,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:37:29,858 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:29,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:29,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1911666638, now seen corresponding path program 1 times [2022-11-18 19:37:29,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:29,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557528374] [2022-11-18 19:37:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:29,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:29,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:30,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:37:30,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:30,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557528374] [2022-11-18 19:37:30,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557528374] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:30,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254294611] [2022-11-18 19:37:30,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:30,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:30,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:30,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:30,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:37:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:30,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:37:30,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:30,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:37:30,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:37:30,339 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:37:30,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254294611] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:37:30,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:37:30,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-18 19:37:30,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708508393] [2022-11-18 19:37:30,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:37:30,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:37:30,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:30,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:37:30,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:37:30,343 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 19:37:30,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:30,426 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-11-18 19:37:30,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:37:30,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 17 [2022-11-18 19:37:30,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:30,431 INFO L225 Difference]: With dead ends: 34 [2022-11-18 19:37:30,432 INFO L226 Difference]: Without dead ends: 33 [2022-11-18 19:37:30,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:37:30,437 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 5 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:30,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 98 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:37:30,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-18 19:37:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-18 19:37:30,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 25 states have internal predecessors, (26), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:37:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-11-18 19:37:30,447 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 17 [2022-11-18 19:37:30,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:30,447 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-18 19:37:30,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 19:37:30,448 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-11-18 19:37:30,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-18 19:37:30,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:30,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:30,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 19:37:30,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:30,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:30,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:30,658 INFO L85 PathProgramCache]: Analyzing trace with hash 551123241, now seen corresponding path program 1 times [2022-11-18 19:37:30,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:30,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683389169] [2022-11-18 19:37:30,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:30,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:30,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:30,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:30,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:37:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:30,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:37:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 19:37:30,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:30,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683389169] [2022-11-18 19:37:30,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683389169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:30,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:30,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:37:30,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12487522] [2022-11-18 19:37:30,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:30,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:37:30,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:30,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:37:30,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:37:30,836 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 19:37:30,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:30,897 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-11-18 19:37:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:37:30,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2022-11-18 19:37:30,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:30,901 INFO L225 Difference]: With dead ends: 49 [2022-11-18 19:37:30,901 INFO L226 Difference]: Without dead ends: 47 [2022-11-18 19:37:30,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:37:30,903 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 19 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:30,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 122 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:37:30,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-18 19:37:30,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2022-11-18 19:37:30,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 33 states have internal predecessors, (37), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 19:37:30,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2022-11-18 19:37:30,911 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 33 [2022-11-18 19:37:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:30,911 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2022-11-18 19:37:30,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 19:37:30,912 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2022-11-18 19:37:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-18 19:37:30,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:30,913 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:30,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:37:30,913 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:30,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:30,914 INFO L85 PathProgramCache]: Analyzing trace with hash 551123433, now seen corresponding path program 1 times [2022-11-18 19:37:30,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:30,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394047637] [2022-11-18 19:37:30,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:30,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:37:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:37:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,115 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 19:37:31,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:31,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394047637] [2022-11-18 19:37:31,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394047637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:31,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:31,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:37:31,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336638425] [2022-11-18 19:37:31,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:31,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:37:31,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:31,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:37:31,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:37:31,119 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 19:37:31,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:31,206 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2022-11-18 19:37:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:37:31,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2022-11-18 19:37:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:31,209 INFO L225 Difference]: With dead ends: 44 [2022-11-18 19:37:31,209 INFO L226 Difference]: Without dead ends: 43 [2022-11-18 19:37:31,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:37:31,212 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 22 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:31,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 86 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:37:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-18 19:37:31,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-18 19:37:31,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.206896551724138) internal successors, (35), 32 states have internal predecessors, (35), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 19:37:31,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2022-11-18 19:37:31,225 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 33 [2022-11-18 19:37:31,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:31,225 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2022-11-18 19:37:31,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 19:37:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-11-18 19:37:31,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-18 19:37:31,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:31,227 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:31,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:37:31,227 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:31,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:31,228 INFO L85 PathProgramCache]: Analyzing trace with hash -95042683, now seen corresponding path program 1 times [2022-11-18 19:37:31,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:31,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466211189] [2022-11-18 19:37:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:31,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:37:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:37:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 19:37:31,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:31,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466211189] [2022-11-18 19:37:31,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466211189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:31,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:31,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:37:31,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540113300] [2022-11-18 19:37:31,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:31,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:37:31,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:31,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:37:31,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:37:31,400 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 19:37:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:31,502 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2022-11-18 19:37:31,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:37:31,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-11-18 19:37:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:31,504 INFO L225 Difference]: With dead ends: 45 [2022-11-18 19:37:31,504 INFO L226 Difference]: Without dead ends: 44 [2022-11-18 19:37:31,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:37:31,506 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 17 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:31,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 171 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:37:31,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-18 19:37:31,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2022-11-18 19:37:31,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 32 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 19:37:31,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2022-11-18 19:37:31,513 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 34 [2022-11-18 19:37:31,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:31,513 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2022-11-18 19:37:31,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 19:37:31,513 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2022-11-18 19:37:31,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-18 19:37:31,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:31,518 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:31,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:37:31,519 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:31,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:31,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1626861010, now seen corresponding path program 1 times [2022-11-18 19:37:31,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:31,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029741472] [2022-11-18 19:37:31,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:31,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:37:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:37:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 19:37:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:37:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 19:37:31,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:31,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029741472] [2022-11-18 19:37:31,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029741472] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:31,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660418153] [2022-11-18 19:37:31,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:31,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:31,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:31,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:31,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:37:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:31,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:37:31,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:31,937 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 19:37:31,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:37:32,054 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 19:37:32,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660418153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:37:32,054 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:37:32,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2022-11-18 19:37:32,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036775215] [2022-11-18 19:37:32,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:37:32,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 19:37:32,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:32,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 19:37:32,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:37:32,056 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 17 states, 16 states have (on average 2.5625) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-18 19:37:32,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:32,391 INFO L93 Difference]: Finished difference Result 87 states and 104 transitions. [2022-11-18 19:37:32,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 19:37:32,404 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.5625) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 50 [2022-11-18 19:37:32,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:32,407 INFO L225 Difference]: With dead ends: 87 [2022-11-18 19:37:32,407 INFO L226 Difference]: Without dead ends: 86 [2022-11-18 19:37:32,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=248, Invalid=682, Unknown=0, NotChecked=0, Total=930 [2022-11-18 19:37:32,409 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 119 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:32,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 229 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:37:32,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-18 19:37:32,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 75. [2022-11-18 19:37:32,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 52 states have (on average 1.25) internal successors, (65), 55 states have internal predecessors, (65), 18 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-18 19:37:32,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 95 transitions. [2022-11-18 19:37:32,428 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 95 transitions. Word has length 50 [2022-11-18 19:37:32,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:32,429 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 95 transitions. [2022-11-18 19:37:32,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.5625) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-18 19:37:32,429 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 95 transitions. [2022-11-18 19:37:32,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-18 19:37:32,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:32,430 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:32,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:32,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 19:37:32,636 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:32,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:32,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1106916314, now seen corresponding path program 1 times [2022-11-18 19:37:32,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:32,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939557382] [2022-11-18 19:37:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:32,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:32,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:32,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:37:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:32,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:37:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:32,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 19:37:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:32,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:37:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 19:37:32,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:32,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939557382] [2022-11-18 19:37:32,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939557382] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:32,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508169106] [2022-11-18 19:37:32,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:32,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:32,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:32,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:32,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:37:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:32,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:37:32,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:32,996 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 19:37:32,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:37:32,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508169106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:32,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:37:32,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2022-11-18 19:37:32,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937954563] [2022-11-18 19:37:32,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:32,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:37:32,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:32,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:37:32,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:37:33,000 INFO L87 Difference]: Start difference. First operand 75 states and 95 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-18 19:37:33,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:33,117 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2022-11-18 19:37:33,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:37:33,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 51 [2022-11-18 19:37:33,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:33,119 INFO L225 Difference]: With dead ends: 76 [2022-11-18 19:37:33,119 INFO L226 Difference]: Without dead ends: 75 [2022-11-18 19:37:33,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:37:33,121 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 35 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:33,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 161 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:37:33,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-18 19:37:33,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2022-11-18 19:37:33,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 54 states have internal predecessors, (62), 18 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-18 19:37:33,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 92 transitions. [2022-11-18 19:37:33,134 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 92 transitions. Word has length 51 [2022-11-18 19:37:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:33,134 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 92 transitions. [2022-11-18 19:37:33,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-18 19:37:33,135 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 92 transitions. [2022-11-18 19:37:33,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-18 19:37:33,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:33,136 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:33,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:33,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:33,343 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:33,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:33,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1106922272, now seen corresponding path program 1 times [2022-11-18 19:37:33,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:33,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019542054] [2022-11-18 19:37:33,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:33,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:33,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:33,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:37:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:33,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:37:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:33,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 19:37:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:33,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:37:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 19:37:33,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:33,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019542054] [2022-11-18 19:37:33,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019542054] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:33,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620225414] [2022-11-18 19:37:33,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:33,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:33,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:33,514 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:33,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:37:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:33,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 19:37:33,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:33,710 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 19:37:33,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:37:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 19:37:33,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620225414] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:37:33,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:37:33,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 21 [2022-11-18 19:37:33,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210293208] [2022-11-18 19:37:33,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:37:33,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 19:37:33,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:33,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 19:37:33,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:37:33,894 INFO L87 Difference]: Start difference. First operand 74 states and 92 transitions. Second operand has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 16 states have internal predecessors, (49), 9 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-11-18 19:37:34,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:34,209 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2022-11-18 19:37:34,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:37:34,210 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 16 states have internal predecessors, (49), 9 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 51 [2022-11-18 19:37:34,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:34,211 INFO L225 Difference]: With dead ends: 78 [2022-11-18 19:37:34,211 INFO L226 Difference]: Without dead ends: 77 [2022-11-18 19:37:34,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=233, Invalid=823, Unknown=0, NotChecked=0, Total=1056 [2022-11-18 19:37:34,213 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 83 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:34,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 323 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:37:34,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-18 19:37:34,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2022-11-18 19:37:34,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 53 states have internal predecessors, (58), 18 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-18 19:37:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2022-11-18 19:37:34,223 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 51 [2022-11-18 19:37:34,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:34,224 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2022-11-18 19:37:34,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 16 states have internal predecessors, (49), 9 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-11-18 19:37:34,224 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2022-11-18 19:37:34,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-18 19:37:34,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:34,226 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:34,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:34,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:34,432 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:34,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1638655593, now seen corresponding path program 2 times [2022-11-18 19:37:34,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:34,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643038575] [2022-11-18 19:37:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:34,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:37:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:37:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 19:37:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:37:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 19:37:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 19:37:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 19:37:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 19:37:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:37:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 19:37:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-18 19:37:34,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:34,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643038575] [2022-11-18 19:37:34,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643038575] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:34,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405191913] [2022-11-18 19:37:34,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:37:34,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:34,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:34,861 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:34,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:37:34,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:37:34,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:37:34,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-18 19:37:34,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:35,102 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-18 19:37:35,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:37:35,469 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-18 19:37:35,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405191913] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:37:35,469 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:37:35,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 34 [2022-11-18 19:37:35,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204277288] [2022-11-18 19:37:35,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:37:35,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-18 19:37:35,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:35,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-18 19:37:35,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 19:37:35,471 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 35 states, 34 states have (on average 2.264705882352941) internal successors, (77), 24 states have internal predecessors, (77), 12 states have call successors, (35), 12 states have call predecessors, (35), 1 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2022-11-18 19:37:36,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:36,230 INFO L93 Difference]: Finished difference Result 151 states and 189 transitions. [2022-11-18 19:37:36,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-18 19:37:36,231 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.264705882352941) internal successors, (77), 24 states have internal predecessors, (77), 12 states have call successors, (35), 12 states have call predecessors, (35), 1 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) Word has length 101 [2022-11-18 19:37:36,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:36,232 INFO L225 Difference]: With dead ends: 151 [2022-11-18 19:37:36,233 INFO L226 Difference]: Without dead ends: 150 [2022-11-18 19:37:36,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=986, Invalid=3046, Unknown=0, NotChecked=0, Total=4032 [2022-11-18 19:37:36,235 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 383 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:36,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 353 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:37:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-18 19:37:36,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 139. [2022-11-18 19:37:36,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 100 states have (on average 1.12) internal successors, (112), 101 states have internal predecessors, (112), 36 states have call successors, (36), 13 states have call predecessors, (36), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-11-18 19:37:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 172 transitions. [2022-11-18 19:37:36,269 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 172 transitions. Word has length 101 [2022-11-18 19:37:36,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:36,270 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 172 transitions. [2022-11-18 19:37:36,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.264705882352941) internal successors, (77), 24 states have internal predecessors, (77), 12 states have call successors, (35), 12 states have call predecessors, (35), 1 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2022-11-18 19:37:36,271 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 172 transitions. [2022-11-18 19:37:36,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-18 19:37:36,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:36,284 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:36,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 19:37:36,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 19:37:36,493 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:36,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:36,493 INFO L85 PathProgramCache]: Analyzing trace with hash 269196873, now seen corresponding path program 3 times [2022-11-18 19:37:36,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:36,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961871426] [2022-11-18 19:37:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:36,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:37:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:37:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 19:37:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:37:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 19:37:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 19:37:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 19:37:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 19:37:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:37:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 19:37:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:37:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 19:37:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:37:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 19:37:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:37:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-18 19:37:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-18 19:37:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 19:37:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-18 19:37:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 19:37:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:37:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 19:37:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:38,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 0 proven. 475 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2022-11-18 19:37:38,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:38,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961871426] [2022-11-18 19:37:38,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961871426] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:38,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317645913] [2022-11-18 19:37:38,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:37:38,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:38,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:38,206 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:38,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:37:38,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-11-18 19:37:38,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:37:38,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-18 19:37:38,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2022-11-18 19:37:38,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:37:39,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2022-11-18 19:37:39,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317645913] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:37:39,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:37:39,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 6, 6] total 44 [2022-11-18 19:37:39,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756635530] [2022-11-18 19:37:39,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:37:39,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-18 19:37:39,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:39,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-18 19:37:39,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=1679, Unknown=0, NotChecked=0, Total=1980 [2022-11-18 19:37:39,207 INFO L87 Difference]: Start difference. First operand 139 states and 172 transitions. Second operand has 45 states, 44 states have (on average 2.5) internal successors, (110), 32 states have internal predecessors, (110), 18 states have call successors, (51), 14 states have call predecessors, (51), 1 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36) [2022-11-18 19:37:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:42,425 INFO L93 Difference]: Finished difference Result 307 states and 381 transitions. [2022-11-18 19:37:42,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-18 19:37:42,426 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.5) internal successors, (110), 32 states have internal predecessors, (110), 18 states have call successors, (51), 14 states have call predecessors, (51), 1 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36) Word has length 203 [2022-11-18 19:37:42,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:42,428 INFO L225 Difference]: With dead ends: 307 [2022-11-18 19:37:42,428 INFO L226 Difference]: Without dead ends: 306 [2022-11-18 19:37:42,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5493 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=4130, Invalid=14776, Unknown=0, NotChecked=0, Total=18906 [2022-11-18 19:37:42,437 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 1199 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:42,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 744 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:37:42,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-11-18 19:37:42,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 255. [2022-11-18 19:37:42,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 178 states have (on average 1.1404494382022472) internal successors, (203), 178 states have internal predecessors, (203), 74 states have call successors, (74), 26 states have call predecessors, (74), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-18 19:37:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 327 transitions. [2022-11-18 19:37:42,481 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 327 transitions. Word has length 203 [2022-11-18 19:37:42,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:42,481 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 327 transitions. [2022-11-18 19:37:42,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.5) internal successors, (110), 32 states have internal predecessors, (110), 18 states have call successors, (51), 14 states have call predecessors, (51), 1 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36) [2022-11-18 19:37:42,482 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 327 transitions. [2022-11-18 19:37:42,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-18 19:37:42,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:42,490 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:42,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:42,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 19:37:42,698 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:42,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:42,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1401050065, now seen corresponding path program 1 times [2022-11-18 19:37:42,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:42,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507776175] [2022-11-18 19:37:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:42,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:37:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:37:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 19:37:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:37:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 19:37:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 19:37:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 19:37:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 19:37:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:37:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 19:37:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:37:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 19:37:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:37:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 19:37:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:37:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-18 19:37:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-18 19:37:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 19:37:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-18 19:37:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 19:37:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:37:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 19:37:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-11-18 19:37:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-18 19:37:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-18 19:37:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-11-18 19:37:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1387 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2022-11-18 19:37:44,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:44,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507776175] [2022-11-18 19:37:44,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507776175] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:44,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186264821] [2022-11-18 19:37:44,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:44,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:44,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:44,552 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:44,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:37:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:44,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-18 19:37:44,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:45,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1387 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2022-11-18 19:37:45,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:37:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1387 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2022-11-18 19:37:46,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186264821] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:37:46,443 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:37:46,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 76 [2022-11-18 19:37:46,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310578161] [2022-11-18 19:37:46,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:37:46,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-11-18 19:37:46,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:46,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-11-18 19:37:46,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1051, Invalid=4801, Unknown=0, NotChecked=0, Total=5852 [2022-11-18 19:37:46,450 INFO L87 Difference]: Start difference. First operand 255 states and 327 transitions. Second operand has 77 states, 76 states have (on average 2.1973684210526314) internal successors, (167), 52 states have internal predecessors, (167), 26 states have call successors, (77), 26 states have call predecessors, (77), 1 states have return successors, (52), 26 states have call predecessors, (52), 26 states have call successors, (52) [2022-11-18 19:37:49,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:49,318 INFO L93 Difference]: Finished difference Result 544 states and 706 transitions. [2022-11-18 19:37:49,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-11-18 19:37:49,319 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 76 states have (on average 2.1973684210526314) internal successors, (167), 52 states have internal predecessors, (167), 26 states have call successors, (77), 26 states have call predecessors, (77), 1 states have return successors, (52), 26 states have call predecessors, (52), 26 states have call successors, (52) Word has length 237 [2022-11-18 19:37:49,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:49,330 INFO L225 Difference]: With dead ends: 544 [2022-11-18 19:37:49,330 INFO L226 Difference]: Without dead ends: 543 [2022-11-18 19:37:49,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6403 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=5207, Invalid=16549, Unknown=0, NotChecked=0, Total=21756 [2022-11-18 19:37:49,342 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 972 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:49,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 670 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 19:37:49,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-11-18 19:37:49,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 515. [2022-11-18 19:37:49,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 360 states have (on average 1.1416666666666666) internal successors, (411), 360 states have internal predecessors, (411), 152 states have call successors, (152), 52 states have call predecessors, (152), 2 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2022-11-18 19:37:49,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 665 transitions. [2022-11-18 19:37:49,389 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 665 transitions. Word has length 237 [2022-11-18 19:37:49,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:49,390 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 665 transitions. [2022-11-18 19:37:49,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 76 states have (on average 2.1973684210526314) internal successors, (167), 52 states have internal predecessors, (167), 26 states have call successors, (77), 26 states have call predecessors, (77), 1 states have return successors, (52), 26 states have call predecessors, (52), 26 states have call successors, (52) [2022-11-18 19:37:49,391 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 665 transitions. [2022-11-18 19:37:49,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2022-11-18 19:37:49,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:49,404 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:49,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:49,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 19:37:49,616 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:37:49,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:49,616 INFO L85 PathProgramCache]: Analyzing trace with hash 255499764, now seen corresponding path program 2 times [2022-11-18 19:37:49,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:49,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960877312] [2022-11-18 19:37:49,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:49,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:37:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:37:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:37:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 19:37:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:37:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 19:37:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 19:37:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 19:37:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 19:37:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:37:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 19:37:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:37:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 19:37:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:37:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 19:37:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:37:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-18 19:37:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-18 19:37:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 19:37:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-18 19:37:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 19:37:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:37:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 19:37:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-11-18 19:37:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-18 19:37:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-18 19:37:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-11-18 19:37:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-11-18 19:37:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-18 19:37:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 19:37:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-18 19:37:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-18 19:37:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-11-18 19:37:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-11-18 19:37:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-11-18 19:37:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-11-18 19:37:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-11-18 19:37:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-11-18 19:37:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-11-18 19:37:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-11-18 19:37:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-11-18 19:37:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-11-18 19:37:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-11-18 19:37:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-11-18 19:37:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-11-18 19:37:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-11-18 19:37:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-11-18 19:37:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2022-11-18 19:37:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-11-18 19:37:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-11-18 19:37:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2022-11-18 19:37:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2022-11-18 19:37:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-11-18 19:37:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:55,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5638 backedges. 0 proven. 2819 refuted. 0 times theorem prover too weak. 2819 trivial. 0 not checked. [2022-11-18 19:37:55,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:55,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960877312] [2022-11-18 19:37:55,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960877312] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:37:55,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495550379] [2022-11-18 19:37:55,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:37:55,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:37:55,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:55,735 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:37:55,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 19:37:56,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:37:56,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:37:56,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1636 conjuncts, 102 conjunts are in the unsatisfiable core [2022-11-18 19:37:56,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:56,624 INFO L134 CoverageAnalysis]: Checked inductivity of 5638 backedges. 0 proven. 2819 refuted. 0 times theorem prover too weak. 2819 trivial. 0 not checked. [2022-11-18 19:37:56,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:38:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 5638 backedges. 0 proven. 2819 refuted. 0 times theorem prover too weak. 2819 trivial. 0 not checked. [2022-11-18 19:38:01,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495550379] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:38:01,058 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:38:01,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76, 76] total 154 [2022-11-18 19:38:01,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123878295] [2022-11-18 19:38:01,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:38:01,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2022-11-18 19:38:01,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:01,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2022-11-18 19:38:01,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4132, Invalid=19738, Unknown=0, NotChecked=0, Total=23870 [2022-11-18 19:38:01,068 INFO L87 Difference]: Start difference. First operand 515 states and 665 transitions. Second operand has 155 states, 154 states have (on average 2.0974025974025974) internal successors, (323), 104 states have internal predecessors, (323), 52 states have call successors, (155), 52 states have call predecessors, (155), 1 states have return successors, (104), 52 states have call predecessors, (104), 52 states have call successors, (104) [2022-11-18 19:38:10,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:10,507 INFO L93 Difference]: Finished difference Result 1090 states and 1421 transitions. [2022-11-18 19:38:10,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-11-18 19:38:10,508 INFO L78 Accepts]: Start accepts. Automaton has has 155 states, 154 states have (on average 2.0974025974025974) internal successors, (323), 104 states have internal predecessors, (323), 52 states have call successors, (155), 52 states have call predecessors, (155), 1 states have return successors, (104), 52 states have call predecessors, (104), 52 states have call successors, (104) Word has length 458 [2022-11-18 19:38:10,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:10,516 INFO L225 Difference]: With dead ends: 1090 [2022-11-18 19:38:10,516 INFO L226 Difference]: Without dead ends: 1089 [2022-11-18 19:38:10,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1273 GetRequests, 971 SyntacticMatches, 0 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27814 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=21886, Invalid=70226, Unknown=0, NotChecked=0, Total=92112 [2022-11-18 19:38:10,526 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 2398 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2398 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:10,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2398 Valid, 1497 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-18 19:38:10,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2022-11-18 19:38:10,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1035. [2022-11-18 19:38:10,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 724 states have (on average 1.1422651933701657) internal successors, (827), 724 states have internal predecessors, (827), 308 states have call successors, (308), 104 states have call predecessors, (308), 2 states have return successors, (206), 206 states have call predecessors, (206), 206 states have call successors, (206) [2022-11-18 19:38:10,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1341 transitions. [2022-11-18 19:38:10,615 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1341 transitions. Word has length 458 [2022-11-18 19:38:10,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:10,616 INFO L495 AbstractCegarLoop]: Abstraction has 1035 states and 1341 transitions. [2022-11-18 19:38:10,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 154 states have (on average 2.0974025974025974) internal successors, (323), 104 states have internal predecessors, (323), 52 states have call successors, (155), 52 states have call predecessors, (155), 1 states have return successors, (104), 52 states have call predecessors, (104), 52 states have call successors, (104) [2022-11-18 19:38:10,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1341 transitions. [2022-11-18 19:38:10,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2022-11-18 19:38:10,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:10,653 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 51, 51, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:10,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:10,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 19:38:10,861 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:10,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1135257556, now seen corresponding path program 3 times [2022-11-18 19:38:10,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:10,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640424265] [2022-11-18 19:38:10,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:10,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:38:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:38:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:38:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:38:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 19:38:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:38:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 19:38:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 19:38:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 19:38:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 19:38:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:38:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 19:38:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 19:38:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 19:38:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:38:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 19:38:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:38:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-18 19:38:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-18 19:38:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-18 19:38:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-18 19:38:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 19:38:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:38:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 19:38:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-11-18 19:38:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-18 19:38:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-18 19:38:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-11-18 19:38:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-11-18 19:38:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-18 19:38:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 19:38:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-18 19:38:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-18 19:38:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-11-18 19:38:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-11-18 19:38:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-11-18 19:38:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-11-18 19:38:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-11-18 19:38:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-11-18 19:38:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-11-18 19:38:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-11-18 19:38:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-11-18 19:38:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-11-18 19:38:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-11-18 19:38:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-11-18 19:38:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-11-18 19:38:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-11-18 19:38:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-11-18 19:38:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2022-11-18 19:38:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-11-18 19:38:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-11-18 19:38:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2022-11-18 19:38:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2022-11-18 19:38:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-11-18 19:38:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-11-18 19:38:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2022-11-18 19:38:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-11-18 19:38:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-11-18 19:38:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-11-18 19:38:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2022-11-18 19:38:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2022-11-18 19:38:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-11-18 19:38:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-11-18 19:38:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-11-18 19:38:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2022-11-18 19:38:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-11-18 19:38:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-11-18 19:38:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2022-11-18 19:38:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2022-11-18 19:38:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 586 [2022-11-18 19:38:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 598 [2022-11-18 19:38:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 603 [2022-11-18 19:38:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-11-18 19:38:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 620 [2022-11-18 19:38:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 632 [2022-11-18 19:38:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2022-11-18 19:38:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 649 [2022-11-18 19:38:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 654 [2022-11-18 19:38:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 666 [2022-11-18 19:38:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-11-18 19:38:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 683 [2022-11-18 19:38:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2022-11-18 19:38:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 700 [2022-11-18 19:38:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2022-11-18 19:38:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2022-11-18 19:38:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2022-11-18 19:38:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2022-11-18 19:38:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 739 [2022-11-18 19:38:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2022-11-18 19:38:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 756 [2022-11-18 19:38:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 768 [2022-11-18 19:38:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 773 [2022-11-18 19:38:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 785 [2022-11-18 19:38:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 790 [2022-11-18 19:38:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 802 [2022-11-18 19:38:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 807 [2022-11-18 19:38:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 819 [2022-11-18 19:38:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 824 [2022-11-18 19:38:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 836 [2022-11-18 19:38:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2022-11-18 19:38:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 853 [2022-11-18 19:38:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 858 [2022-11-18 19:38:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 870 [2022-11-18 19:38:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 875 [2022-11-18 19:38:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 887 [2022-11-18 19:38:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 892 [2022-11-18 19:38:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 22759 backedges. 0 proven. 11724 refuted. 0 times theorem prover too weak. 11035 trivial. 0 not checked. [2022-11-18 19:38:32,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:32,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640424265] [2022-11-18 19:38:32,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640424265] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:38:32,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309697662] [2022-11-18 19:38:32,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:38:32,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:32,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:32,377 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:38:32,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 19:38:32,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:38:32,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:38:32,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:38:32,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 22759 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 22353 trivial. 0 not checked. [2022-11-18 19:38:33,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:33,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309697662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:33,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:38:33,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [154] total 159 [2022-11-18 19:38:33,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660215644] [2022-11-18 19:38:33,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:33,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:38:33,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:33,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:38:33,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4244, Invalid=21196, Unknown=0, NotChecked=0, Total=25440 [2022-11-18 19:38:33,073 INFO L87 Difference]: Start difference. First operand 1035 states and 1341 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 19:38:33,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:33,528 INFO L93 Difference]: Finished difference Result 1238 states and 1544 transitions. [2022-11-18 19:38:33,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:38:33,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 900 [2022-11-18 19:38:33,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:33,537 INFO L225 Difference]: With dead ends: 1238 [2022-11-18 19:38:33,538 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:38:33,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1323 GetRequests, 1161 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8152 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=4270, Invalid=22462, Unknown=0, NotChecked=0, Total=26732 [2022-11-18 19:38:33,550 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 21 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:33,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 177 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:38:33,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:38:33,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:38:33,552 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) [2022-11-18 19:38:33,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:38:33,553 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 900 [2022-11-18 19:38:33,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:33,554 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:38:33,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 19:38:33,554 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:38:33,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:38:33,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-18 19:38:33,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-18 19:38:33,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-18 19:38:33,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-18 19:38:33,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-18 19:38:33,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-18 19:38:33,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-18 19:38:33,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 19:38:33,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 19:38:54,936 WARN L233 SmtUtils]: Spent 7.22s on a formula simplification. DAG size of input: 854 DAG size of output: 269 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-18 19:38:54,944 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-11-18 19:38:54,945 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 19:38:54,945 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 19:38:54,945 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-11-18 19:38:54,945 INFO L899 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2022-11-18 19:38:54,945 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 19:38:54,945 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 19:38:54,945 INFO L902 garLoopResultBuilder]: At program point L53(lines 40 54) the Hoare annotation is: true [2022-11-18 19:38:54,946 INFO L902 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: true [2022-11-18 19:38:54,946 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-11-18 19:38:54,946 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-11-18 19:38:54,946 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2022-11-18 19:38:54,946 INFO L895 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~n~0#1|)) [2022-11-18 19:38:54,946 INFO L895 garLoopResultBuilder]: At program point L47-2(line 47) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~n~0#1|)) [2022-11-18 19:38:54,947 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2022-11-18 19:38:54,947 INFO L899 garLoopResultBuilder]: For program point L47-3(line 47) no Hoare annotation was computed. [2022-11-18 19:38:54,947 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (<= |ULTIMATE.start_main_~n~0#1| 2147483647) [2022-11-18 19:38:54,947 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2022-11-18 19:38:54,947 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 7 9) the Hoare annotation is: true [2022-11-18 19:38:54,947 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-11-18 19:38:54,947 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2022-11-18 19:38:54,948 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2022-11-18 19:38:54,948 INFO L899 garLoopResultBuilder]: For program point checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-18 19:38:54,948 INFO L902 garLoopResultBuilder]: At program point checkENTRY(lines 16 38) the Hoare annotation is: true [2022-11-18 19:38:54,948 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-18 19:38:54,948 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-11-18 19:38:54,948 INFO L899 garLoopResultBuilder]: For program point checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-18 19:38:54,949 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-18 19:38:54,949 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2022-11-18 19:38:54,949 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-18 19:38:54,949 INFO L899 garLoopResultBuilder]: For program point checkFINAL(lines 16 38) no Hoare annotation was computed. [2022-11-18 19:38:54,949 INFO L899 garLoopResultBuilder]: For program point checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-18 19:38:54,949 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 27) no Hoare annotation was computed. [2022-11-18 19:38:54,949 INFO L899 garLoopResultBuilder]: For program point checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-18 19:38:54,949 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-11-18 19:38:54,949 INFO L899 garLoopResultBuilder]: For program point L26-2(line 26) no Hoare annotation was computed. [2022-11-18 19:38:54,951 INFO L895 garLoopResultBuilder]: At program point L26-4(lines 26 27) the Hoare annotation is: (let ((.cse4 (<= |check_#in~y| 2147483646))) (let ((.cse5 (<= 1 check_~y)) (.cse6 (<= 1 check_~x)) (.cse3 (<= check_~y 2147483646)) (.cse0 (not .cse4)) (.cse1 (not (<= 1 |check_#in~x|))) (.cse2 (not (<= 1 |check_#in~y|)))) (and (or .cse0 .cse1 .cse2 (not (<= |check_#in~x| 6)) (<= check_~x 7)) (or .cse0 .cse1 .cse2 (< check_~x 2147483647) (not (< |check_#in~x| 2147483647))) (or .cse0 (<= check_~x 16) .cse1 .cse2 (not (<= |check_#in~x| 15))) (or .cse0 .cse1 (< check_~x 2147483640) .cse2 (not (< |check_#in~x| 2147483639))) (or .cse0 (< check_~x 2147483646) (not (< |check_#in~x| 2147483645)) .cse1 .cse2) (or .cse0 .cse1 (not (< |check_#in~x| 2147483623)) .cse2 (< check_~x 2147483624)) (or .cse0 .cse1 (< check_~x 2147483627) .cse2 (not (< |check_#in~x| 2147483626))) (or .cse0 (< check_~x 2147483639) .cse1 .cse2 (not (< |check_#in~x| 2147483638))) (or .cse0 .cse1 (not (< |check_#in~x| 2147483630)) (< check_~x 2147483631) .cse2) (or .cse0 (<= check_~x 23) .cse1 (not (<= |check_#in~x| 22)) .cse2) (or .cse0 .cse1 (<= check_~x 4) .cse2 (not (<= |check_#in~x| 3))) (or .cse0 .cse1 .cse2 (< check_~x 2147483638) (not (< |check_#in~x| 2147483637))) (or .cse0 (<= check_~x 19) .cse1 (not (<= |check_#in~x| 18)) .cse2) (or .cse0 .cse1 (not (< |check_#in~x| 2147483641)) .cse2 (< check_~x 2147483642)) (or .cse0 .cse1 .cse2 (not (< |check_#in~x| 2147483625)) (< check_~x 2147483626)) (or .cse0 .cse1 (< check_~x 2147483644) .cse2 (not (< |check_#in~x| 2147483643))) (or .cse0 .cse1 (<= check_~x 8) .cse2 (not (<= |check_#in~x| 7))) (or .cse0 .cse1 .cse2 (not (< |check_#in~x| 2147483644)) (< check_~x 2147483645)) (or .cse0 .cse1 (< check_~x 2147483632) .cse2 (not (< |check_#in~x| 2147483631))) (or .cse0 (<= check_~x 24) .cse1 .cse2 (not (<= |check_#in~x| 23))) (or .cse0 .cse1 (< check_~x 2147483634) .cse2 (not (< |check_#in~x| 2147483633))) (or .cse0 (not (< |check_#in~x| 2147483642)) .cse1 .cse2 (< check_~x 2147483643)) (or .cse0 .cse1 (not (<= |check_#in~x| 14)) (<= check_~x 15) .cse2) (or .cse0 .cse1 (not (< |check_#in~x| 2147483627)) .cse2 (< check_~x 2147483628)) (or (not (<= |check_#in~x| 16)) .cse0 .cse1 (<= check_~x 17) .cse2) (or .cse0 (<= check_~x 9) .cse1 .cse2 (not (<= |check_#in~x| 8))) (or .cse0 (not (= |check_#in~x| 0)) (and (= check_~x 0) (< 0 (+ check_~y 2147483648)) .cse3) (and .cse4 .cse5 (<= check_~x 1) .cse6 .cse3)) (or (not (< |check_#in~x| 2147483634)) .cse0 .cse1 (< check_~x 2147483635) .cse2) (or .cse0 .cse1 (<= check_~x 5) .cse2 (not (<= |check_#in~x| 4))) (or .cse0 .cse1 .cse2 (not (<= |check_#in~x| 21)) (<= check_~x 22)) (or .cse0 .cse1 (<= check_~x 3) .cse2 (not (<= |check_#in~x| 2))) (or .cse0 .cse1 (<= check_~x 12) .cse2 (not (<= |check_#in~x| 11))) (or .cse0 .cse1 (not (<= |check_#in~x| 17)) .cse2 (<= check_~x 18)) (or .cse0 .cse1 (< check_~x 2147483630) .cse2 (not (< |check_#in~x| 2147483629))) (or .cse0 (< check_~x 2147483637) .cse1 .cse2 (not (< |check_#in~x| 2147483636))) (or .cse0 (< check_~x 2147483625) .cse1 (not (< |check_#in~x| 2147483624)) .cse2) (or (not (<= |check_#in~x| 24)) .cse0 .cse1 (< check_~x 2147483623) .cse2) (or .cse0 .cse1 (and .cse4 .cse5 .cse6 .cse3) .cse2) (or .cse0 (not (<= |check_#in~x| 10)) .cse1 (<= check_~x 11) .cse2) (or .cse0 .cse1 (<= check_~x 20) .cse2 (not (<= |check_#in~x| 19))) (or .cse0 .cse1 (<= check_~x 2) (not (<= |check_#in~x| 1)) .cse2) (or .cse0 .cse1 .cse2 (not (<= |check_#in~x| 13)) (<= check_~x 14)) (or (not (< |check_#in~x| 2147483632)) .cse0 (< check_~x 2147483633) .cse1 .cse2) (or .cse0 (not (< |check_#in~x| 2147483635)) (< check_~x 2147483636) .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (< |check_#in~x| 2147483640)) (< check_~x 2147483641)) (or .cse0 .cse1 (<= check_~x 21) .cse2 (not (<= |check_#in~x| 20))) (or .cse0 .cse1 (not (<= |check_#in~x| 5)) .cse2 (<= check_~x 6)) (or .cse0 .cse1 (< check_~x 2147483629) .cse2 (not (< |check_#in~x| 2147483628))) (or .cse0 (not (<= |check_#in~x| 9)) .cse1 (<= check_~x 10) .cse2) (or .cse0 .cse1 (not (<= |check_#in~x| 12)) .cse2 (<= check_~x 13))))) [2022-11-18 19:38:54,952 INFO L895 garLoopResultBuilder]: At program point L20(line 20) the Hoare annotation is: (let ((.cse3 (<= check_~y 2147483646)) (.cse0 (not (<= |check_#in~y| 2147483646))) (.cse1 (not (<= 1 |check_#in~x|))) (.cse2 (not (<= 1 |check_#in~y|)))) (and (or .cse0 .cse1 (not (< |check_#in~x| 2147483630)) (< check_~x 2147483630) .cse2) (or .cse0 .cse1 (and (<= 2 check_~y) (<= 1 check_~x) .cse3) .cse2) (or .cse0 .cse1 (<= check_~x 21) .cse2 (not (<= |check_#in~x| 21))) (or .cse0 .cse1 (not (<= |check_#in~x| 14)) .cse2 (<= check_~x 14)) (or .cse0 (not (<= |check_#in~x| 10)) .cse1 (<= check_~x 10) .cse2) (or .cse0 (and (<= (+ check_~x 1) check_~y) (= check_~x 0) .cse3) (not (= |check_#in~x| 0))) (or (not (<= |check_#in~x| 24)) .cse0 (<= check_~x 24) .cse1 .cse2) (or .cse0 .cse1 (not (<= |check_#in~x| 22)) .cse2 (<= check_~x 22)) (or .cse0 .cse1 .cse2 (not (<= |check_#in~x| 6)) (<= check_~x 6)) (or .cse0 .cse1 (not (<= |check_#in~x| 18)) .cse2 (<= check_~x 18)) (or .cse0 .cse1 .cse2 (not (<= |check_#in~x| 13)) (<= check_~x 13)) (or .cse0 (not (<= |check_#in~x| 9)) (<= check_~x 9) .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (< |check_#in~x| 2147483628)) (< check_~x 2147483628)) (or .cse0 .cse1 .cse2 (< check_~x 2147483626) (not (< |check_#in~x| 2147483626))) (or .cse0 .cse1 .cse2 (<= check_~x 7) (not (<= |check_#in~x| 7))) (or .cse0 .cse1 (not (< |check_#in~x| 2147483624)) .cse2 (< check_~x 2147483624)) (or .cse0 .cse1 (<= check_~x 8) .cse2 (not (<= |check_#in~x| 8))) (or .cse0 .cse1 (not (<= |check_#in~x| 5)) (<= check_~x 5) .cse2) (or .cse0 .cse1 (<= check_~x 15) .cse2 (not (<= |check_#in~x| 15))) (or .cse0 .cse1 (< check_~x 2147483631) .cse2 (not (< |check_#in~x| 2147483631))) (or .cse0 .cse1 (< check_~x 2147483640) .cse2 (not (< |check_#in~x| 2147483640))) (or .cse0 (not (< |check_#in~x| 2147483642)) .cse1 .cse2 (< check_~x 2147483642)) (or .cse0 .cse1 (<= check_~x 3) .cse2 (not (<= |check_#in~x| 3))) (or .cse0 .cse1 (<= check_~x 20) .cse2 (not (<= |check_#in~x| 20))) (or .cse0 .cse1 .cse2 (< check_~x 2147483643) (not (< |check_#in~x| 2147483643))) (or .cse0 .cse1 (< check_~x 2147483623) (not (< |check_#in~x| 2147483623)) .cse2) (or .cse0 (< check_~x 2147483639) .cse1 .cse2 (not (< |check_#in~x| 2147483639))) (or .cse0 (<= check_~x 23) .cse1 .cse2 (not (<= |check_#in~x| 23))) (or .cse0 (< check_~x 2147483636) .cse1 .cse2 (not (< |check_#in~x| 2147483636))) (or .cse0 (<= check_~x 19) .cse1 .cse2 (not (<= |check_#in~x| 19))) (or .cse0 .cse1 (< check_~x 2147483644) .cse2 (not (< |check_#in~x| 2147483644))) (or .cse0 .cse1 (<= check_~x 2) .cse2 (not (<= |check_#in~x| 2))) (or .cse0 (< check_~x 2147483637) .cse1 .cse2 (not (< |check_#in~x| 2147483637))) (or .cse0 .cse1 (< check_~x 2147483629) .cse2 (not (< |check_#in~x| 2147483629))) (or .cse0 (not (< |check_#in~x| 2147483645)) .cse1 .cse2 (< check_~x 2147483645)) (or (not (< |check_#in~x| 2147483632)) .cse0 .cse1 (< check_~x 2147483632) .cse2) (or .cse0 (< check_~x 2147483633) .cse1 .cse2 (not (< |check_#in~x| 2147483633))) (or .cse0 .cse1 (not (<= |check_#in~x| 12)) (<= check_~x 12) .cse2) (or (not (< |check_#in~x| 2147483634)) .cse0 .cse1 (< check_~x 2147483634) .cse2) (or .cse0 (not (< |check_#in~x| 2147483635)) .cse1 (< check_~x 2147483635) .cse2) (or (not (<= |check_#in~x| 16)) .cse0 (<= check_~x 16) .cse1 .cse2) (or .cse0 (< check_~x 2147483625) .cse1 .cse2 (not (< |check_#in~x| 2147483625))) (or .cse0 .cse1 (<= check_~x 11) .cse2 (not (<= |check_#in~x| 11))) (or .cse0 .cse1 (<= check_~x 4) .cse2 (not (<= |check_#in~x| 4))) (or .cse0 .cse1 (<= check_~x 2147483645) .cse2) (or .cse0 .cse1 .cse2 (< check_~x 2147483638) (not (< |check_#in~x| 2147483638))) (or .cse0 .cse1 (<= check_~x 17) (not (<= |check_#in~x| 17)) .cse2) (or .cse0 .cse1 (not (<= |check_#in~x| 1)) .cse2 (<= check_~x 1)) (or .cse0 .cse1 (not (< |check_#in~x| 2147483641)) .cse2 (< check_~x 2147483641)) (or .cse0 .cse1 (< check_~x 2147483627) (not (< |check_#in~x| 2147483627)) .cse2))) [2022-11-18 19:38:54,953 INFO L895 garLoopResultBuilder]: At program point L20-1(line 20) the Hoare annotation is: (let ((.cse3 (<= check_~y 2147483646)) (.cse0 (not (<= |check_#in~y| 2147483646))) (.cse1 (not (<= 1 |check_#in~x|))) (.cse2 (not (<= 1 |check_#in~y|)))) (and (or .cse0 .cse1 (not (< |check_#in~x| 2147483630)) (< check_~x 2147483630) .cse2) (or .cse0 .cse1 (and (<= 2 check_~y) (<= 1 check_~x) .cse3) .cse2) (or .cse0 .cse1 (<= check_~x 21) .cse2 (not (<= |check_#in~x| 21))) (or .cse0 .cse1 (not (<= |check_#in~x| 14)) .cse2 (<= check_~x 14)) (or .cse0 (not (<= |check_#in~x| 10)) .cse1 (<= check_~x 10) .cse2) (or .cse0 (and (<= (+ check_~x 1) check_~y) (= check_~x 0) .cse3) (not (= |check_#in~x| 0))) (or (not (<= |check_#in~x| 24)) .cse0 (<= check_~x 24) .cse1 .cse2) (or .cse0 .cse1 (not (<= |check_#in~x| 22)) .cse2 (<= check_~x 22)) (or .cse0 .cse1 .cse2 (not (<= |check_#in~x| 6)) (<= check_~x 6)) (or .cse0 .cse1 (not (<= |check_#in~x| 18)) .cse2 (<= check_~x 18)) (or .cse0 .cse1 .cse2 (not (<= |check_#in~x| 13)) (<= check_~x 13)) (or .cse0 (not (<= |check_#in~x| 9)) (<= check_~x 9) .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (< |check_#in~x| 2147483628)) (< check_~x 2147483628)) (or .cse0 .cse1 .cse2 (< check_~x 2147483626) (not (< |check_#in~x| 2147483626))) (or .cse0 .cse1 .cse2 (<= check_~x 7) (not (<= |check_#in~x| 7))) (or .cse0 .cse1 (not (< |check_#in~x| 2147483624)) .cse2 (< check_~x 2147483624)) (or .cse0 .cse1 (<= check_~x 8) .cse2 (not (<= |check_#in~x| 8))) (or .cse0 .cse1 (not (<= |check_#in~x| 5)) (<= check_~x 5) .cse2) (or .cse0 .cse1 (<= check_~x 15) .cse2 (not (<= |check_#in~x| 15))) (or .cse0 .cse1 (< check_~x 2147483631) .cse2 (not (< |check_#in~x| 2147483631))) (or .cse0 .cse1 (< check_~x 2147483640) .cse2 (not (< |check_#in~x| 2147483640))) (or .cse0 (not (< |check_#in~x| 2147483642)) .cse1 .cse2 (< check_~x 2147483642)) (or .cse0 .cse1 (<= check_~x 3) .cse2 (not (<= |check_#in~x| 3))) (or .cse0 .cse1 (<= check_~x 20) .cse2 (not (<= |check_#in~x| 20))) (or .cse0 .cse1 .cse2 (< check_~x 2147483643) (not (< |check_#in~x| 2147483643))) (or .cse0 .cse1 (< check_~x 2147483623) (not (< |check_#in~x| 2147483623)) .cse2) (or .cse0 (< check_~x 2147483639) .cse1 .cse2 (not (< |check_#in~x| 2147483639))) (or .cse0 (<= check_~x 23) .cse1 .cse2 (not (<= |check_#in~x| 23))) (or .cse0 (< check_~x 2147483636) .cse1 .cse2 (not (< |check_#in~x| 2147483636))) (or .cse0 (<= check_~x 19) .cse1 .cse2 (not (<= |check_#in~x| 19))) (or .cse0 .cse1 (< check_~x 2147483644) .cse2 (not (< |check_#in~x| 2147483644))) (or .cse0 .cse1 (<= check_~x 2) .cse2 (not (<= |check_#in~x| 2))) (or .cse0 (< check_~x 2147483637) .cse1 .cse2 (not (< |check_#in~x| 2147483637))) (or .cse0 .cse1 (< check_~x 2147483629) .cse2 (not (< |check_#in~x| 2147483629))) (or .cse0 (not (< |check_#in~x| 2147483645)) .cse1 .cse2 (< check_~x 2147483645)) (or (not (< |check_#in~x| 2147483632)) .cse0 .cse1 (< check_~x 2147483632) .cse2) (or .cse0 (< check_~x 2147483633) .cse1 .cse2 (not (< |check_#in~x| 2147483633))) (or .cse0 .cse1 (not (<= |check_#in~x| 12)) (<= check_~x 12) .cse2) (or (not (< |check_#in~x| 2147483634)) .cse0 .cse1 (< check_~x 2147483634) .cse2) (or .cse0 (not (< |check_#in~x| 2147483635)) .cse1 (< check_~x 2147483635) .cse2) (or (not (<= |check_#in~x| 16)) .cse0 (<= check_~x 16) .cse1 .cse2) (or .cse0 (< check_~x 2147483625) .cse1 .cse2 (not (< |check_#in~x| 2147483625))) (or .cse0 .cse1 (<= check_~x 11) .cse2 (not (<= |check_#in~x| 11))) (or .cse0 .cse1 (<= check_~x 4) .cse2 (not (<= |check_#in~x| 4))) (or .cse0 .cse1 (<= check_~x 2147483645) .cse2) (or .cse0 .cse1 .cse2 (< check_~x 2147483638) (not (< |check_#in~x| 2147483638))) (or .cse0 .cse1 (<= check_~x 17) (not (<= |check_#in~x| 17)) .cse2) (or .cse0 .cse1 (not (<= |check_#in~x| 1)) .cse2 (<= check_~x 1)) (or .cse0 .cse1 (not (< |check_#in~x| 2147483641)) .cse2 (< check_~x 2147483641)) (or .cse0 .cse1 (< check_~x 2147483627) (not (< |check_#in~x| 2147483627)) .cse2))) [2022-11-18 19:38:54,953 INFO L899 garLoopResultBuilder]: For program point checkEXIT(lines 16 38) no Hoare annotation was computed. [2022-11-18 19:38:54,953 INFO L902 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: true [2022-11-18 19:38:54,953 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-11-18 19:38:54,954 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 10 12) the Hoare annotation is: true [2022-11-18 19:38:54,954 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-11-18 19:38:54,954 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 12) no Hoare annotation was computed. [2022-11-18 19:38:54,954 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 12) no Hoare annotation was computed. [2022-11-18 19:38:54,957 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:54,959 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:38:54,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:38:54 BoogieIcfgContainer [2022-11-18 19:38:54,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:38:54,968 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:38:54,968 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:38:54,968 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:38:54,969 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:29" (3/4) ... [2022-11-18 19:38:54,977 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:38:54,984 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-18 19:38:54,985 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2022-11-18 19:38:54,985 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-18 19:38:54,992 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-18 19:38:54,993 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-18 19:38:54,993 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 19:38:54,993 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:38:55,045 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:38:55,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:38:55,046 INFO L158 Benchmark]: Toolchain (without parser) took 86945.39ms. Allocated memory was 161.5MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 127.2MB in the beginning and 901.0MB in the end (delta: -773.9MB). Peak memory consumption was 438.7MB. Max. memory is 16.1GB. [2022-11-18 19:38:55,046 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 64.7MB in the beginning and 64.7MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:38:55,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.78ms. Allocated memory is still 161.5MB. Free memory was 126.7MB in the beginning and 136.4MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:38:55,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.26ms. Allocated memory is still 161.5MB. Free memory was 136.4MB in the beginning and 134.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:38:55,047 INFO L158 Benchmark]: Boogie Preprocessor took 40.36ms. Allocated memory is still 161.5MB. Free memory was 134.8MB in the beginning and 133.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:38:55,047 INFO L158 Benchmark]: RCFGBuilder took 514.28ms. Allocated memory is still 161.5MB. Free memory was 133.7MB in the beginning and 120.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 19:38:55,048 INFO L158 Benchmark]: TraceAbstraction took 85916.79ms. Allocated memory was 161.5MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 119.1MB in the beginning and 904.2MB in the end (delta: -785.1MB). Peak memory consumption was 843.3MB. Max. memory is 16.1GB. [2022-11-18 19:38:55,048 INFO L158 Benchmark]: Witness Printer took 77.43ms. Allocated memory is still 1.4GB. Free memory was 904.2MB in the beginning and 901.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:38:55,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 64.7MB in the beginning and 64.7MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.78ms. Allocated memory is still 161.5MB. Free memory was 126.7MB in the beginning and 136.4MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.26ms. Allocated memory is still 161.5MB. Free memory was 136.4MB in the beginning and 134.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.36ms. Allocated memory is still 161.5MB. Free memory was 134.8MB in the beginning and 133.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.28ms. Allocated memory is still 161.5MB. Free memory was 133.7MB in the beginning and 120.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 85916.79ms. Allocated memory was 161.5MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 119.1MB in the beginning and 904.2MB in the end (delta: -785.1MB). Peak memory consumption was 843.3MB. Max. memory is 16.1GB. * Witness Printer took 77.43ms. Allocated memory is still 1.4GB. Free memory was 904.2MB in the beginning and 901.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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 4 procedures, 46 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 85.8s, OverallIterations: 14, TraceHistogramMax: 54, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 18.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 21.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5276 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5276 mSDsluCounter, 4741 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4078 mSDsCounter, 996 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3588 IncrementalHoareTripleChecker+Invalid, 4584 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 996 mSolverCounterUnsat, 663 mSDtfsCounter, 3588 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4546 GetRequests, 3637 SyntacticMatches, 0 SemanticMatches, 909 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49364 ImplicationChecksByTransitivity, 28.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1035occurred in iteration=13, InterpolantAutomatonStates: 534, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 164 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 1243 PreInvPairs, 2059 NumberOfFragments, 3049 HoareAnnotationTreeSize, 1243 FomulaSimplifications, 4701 FormulaSimplificationTreeSizeReduction, 6.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 524052 FormulaSimplificationTreeSizeReductionInter, 15.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 40.5s InterpolantComputationTime, 4268 NumberOfCodeBlocks, 3395 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 5355 ConstructedInterpolants, 0 QuantifiedInterpolants, 9750 SizeOfPredicates, 118 NumberOfNonLiveVariables, 4381 ConjunctsInSsa, 236 ConjunctsInUnsatCore, 30 InterpolantComputations, 7 PerfectInterpolantSequences, 47569/70567 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 6 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 19:38:55,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b6c4-095e-49e0-9f9b-ac2af4db9672/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE