./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a --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 64bit --witnessprinter.graph.data.programhash 1978406b317087fc6936fcfda9d4ee773e4c87c61c4595e0ff4751e61b0b216a --- 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-b5237d8 [2022-11-21 16:48:36,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:48:36,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:48:36,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:48:36,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:48:36,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:48:36,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:48:36,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:48:36,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:48:36,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:48:36,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:48:36,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:48:36,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:48:36,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:48:36,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:48:36,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:48:36,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:48:36,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:48:36,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:48:36,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:48:36,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:48:36,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:48:36,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:48:36,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:48:36,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:48:36,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:48:36,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:48:36,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:48:36,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:48:36,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:48:36,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:48:36,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:48:36,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:48:36,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:48:36,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:48:36,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:48:36,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:48:36,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:48:36,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:48:36,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:48:36,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:48:36,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-21 16:48:36,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:48:36,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:48:36,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:48:36,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:48:36,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:48:36,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:48:36,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:48:36,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:48:36,863 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:48:36,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:48:36,865 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:48:36,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:48:36,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:48:36,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:48:36,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:48:36,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:48:36,867 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:48:36,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:48:36,868 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:48:36,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:48:36,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:48:36,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:48:36,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:48:36,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:48:36,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:48:36,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:48:36,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:48:36,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:48:36,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:48:36,872 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:48:36,872 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:48:36,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:48:36,873 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_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1978406b317087fc6936fcfda9d4ee773e4c87c61c4595e0ff4751e61b0b216a [2022-11-21 16:48:37,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:48:37,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:48:37,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:48:37,274 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:48:37,275 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:48:37,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2022-11-21 16:48:40,682 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:48:41,002 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:48:41,003 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2022-11-21 16:48:41,014 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/data/104e70203/6c423f09a6c34332b96dcdc3ecdf60dc/FLAG41741eed2 [2022-11-21 16:48:41,038 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/data/104e70203/6c423f09a6c34332b96dcdc3ecdf60dc [2022-11-21 16:48:41,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:48:41,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:48:41,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:48:41,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:48:41,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:48:41,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4067e30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41, skipping insertion in model container [2022-11-21 16:48:41,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:48:41,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:48:41,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:48:41,263 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:48:41,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:48:41,298 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:48:41,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41 WrapperNode [2022-11-21 16:48:41,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:48:41,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:48:41,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:48:41,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:48:41,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,343 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-11-21 16:48:41,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:48:41,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:48:41,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:48:41,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:48:41,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,379 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:48:41,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:48:41,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:48:41,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:48:41,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (1/1) ... [2022-11-21 16:48:41,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:48:41,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:41,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:48:41,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:48:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:48:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:48:41,606 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:48:41,609 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:48:41,827 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:48:41,835 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:48:41,835 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:48:41,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:48:41 BoogieIcfgContainer [2022-11-21 16:48:41,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:48:41,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:48:41,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:48:41,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:48:41,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:48:41" (1/3) ... [2022-11-21 16:48:41,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd38227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:48:41, skipping insertion in model container [2022-11-21 16:48:41,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:48:41" (2/3) ... [2022-11-21 16:48:41,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd38227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:48:41, skipping insertion in model container [2022-11-21 16:48:41,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:48:41" (3/3) ... [2022-11-21 16:48:41,850 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random2d.c [2022-11-21 16:48:41,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:48:41,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-21 16:48:42,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:48:42,033 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;@131038e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:48:42,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-21 16:48:42,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:42,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 16:48:42,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:42,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-21 16:48:42,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:42,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:42,071 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-21 16:48:42,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:42,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454000787] [2022-11-21 16:48:42,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:42,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:42,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:42,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454000787] [2022-11-21 16:48:42,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454000787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:48:42,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:48:42,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:48:42,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236457812] [2022-11-21 16:48:42,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:48:42,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:48:42,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:42,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:48:42,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:42,387 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-21 16:48:42,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:42,486 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2022-11-21 16:48:42,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:48:42,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-21 16:48:42,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:42,501 INFO L225 Difference]: With dead ends: 44 [2022-11-21 16:48:42,501 INFO L226 Difference]: Without dead ends: 31 [2022-11-21 16:48:42,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:42,514 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:42,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 62 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:48:42,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-21 16:48:42,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-11-21 16:48:42,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.75) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:42,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-11-21 16:48:42,573 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 4 [2022-11-21 16:48:42,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:42,574 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-11-21 16:48:42,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-21 16:48:42,576 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-11-21 16:48:42,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 16:48:42,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:42,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 16:48:42,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:48:42,579 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:42,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:42,582 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-11-21 16:48:42,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:42,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13379133] [2022-11-21 16:48:42,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:42,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:42,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:42,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:42,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13379133] [2022-11-21 16:48:42,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13379133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:48:42,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:48:42,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:48:42,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776341080] [2022-11-21 16:48:42,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:48:42,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:48:42,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:48:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:42,662 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:42,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:42,684 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-11-21 16:48:42,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:48:42,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-21 16:48:42,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:42,686 INFO L225 Difference]: With dead ends: 30 [2022-11-21 16:48:42,686 INFO L226 Difference]: Without dead ends: 29 [2022-11-21 16:48:42,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:42,688 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 27 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:42,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 29 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:48:42,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-21 16:48:42,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-21 16:48:42,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.7) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:42,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-21 16:48:42,695 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 5 [2022-11-21 16:48:42,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:42,695 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-21 16:48:42,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:42,696 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-21 16:48:42,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 16:48:42,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:42,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:48:42,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:48:42,697 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:42,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:42,698 INFO L85 PathProgramCache]: Analyzing trace with hash 294944169, now seen corresponding path program 1 times [2022-11-21 16:48:42,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:42,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334748994] [2022-11-21 16:48:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:42,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:42,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:42,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334748994] [2022-11-21 16:48:42,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334748994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:48:42,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:48:42,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:48:42,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105635891] [2022-11-21 16:48:42,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:48:42,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:48:42,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:42,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:48:42,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:42,781 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-21 16:48:42,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:42,810 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2022-11-21 16:48:42,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:48:42,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-21 16:48:42,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:42,812 INFO L225 Difference]: With dead ends: 52 [2022-11-21 16:48:42,812 INFO L226 Difference]: Without dead ends: 50 [2022-11-21 16:48:42,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:42,814 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 21 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:42,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:48:42,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-21 16:48:42,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2022-11-21 16:48:42,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.7142857142857142) internal successors, (60), 43 states have internal predecessors, (60), 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) [2022-11-21 16:48:42,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2022-11-21 16:48:42,823 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 8 [2022-11-21 16:48:42,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:42,823 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2022-11-21 16:48:42,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-21 16:48:42,824 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2022-11-21 16:48:42,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 16:48:42,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:42,825 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 16:48:42,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:48:42,826 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:42,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:42,826 INFO L85 PathProgramCache]: Analyzing trace with hash 294981328, now seen corresponding path program 1 times [2022-11-21 16:48:42,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:42,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573620015] [2022-11-21 16:48:42,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:42,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:42,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:42,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573620015] [2022-11-21 16:48:42,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573620015] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:42,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463410561] [2022-11-21 16:48:42,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:42,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:42,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:42,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:42,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:48:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:42,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:48:42,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:42,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:42,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:43,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:43,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463410561] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:43,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:43,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-21 16:48:43,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937756028] [2022-11-21 16:48:43,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:43,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:48:43,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:43,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:48:43,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:48:43,019 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:43,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:43,070 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2022-11-21 16:48:43,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:48:43,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-21 16:48:43,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:43,089 INFO L225 Difference]: With dead ends: 147 [2022-11-21 16:48:43,089 INFO L226 Difference]: Without dead ends: 146 [2022-11-21 16:48:43,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:48:43,091 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 104 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:43,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 136 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:48:43,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-21 16:48:43,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 124. [2022-11-21 16:48:43,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 115 states have (on average 1.7130434782608697) internal successors, (197), 123 states have internal predecessors, (197), 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) [2022-11-21 16:48:43,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 197 transitions. [2022-11-21 16:48:43,118 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 197 transitions. Word has length 8 [2022-11-21 16:48:43,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:43,118 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 197 transitions. [2022-11-21 16:48:43,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 197 transitions. [2022-11-21 16:48:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:48:43,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:43,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:48:43,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:48:43,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:43,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:43,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash 553334702, now seen corresponding path program 1 times [2022-11-21 16:48:43,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:43,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653428020] [2022-11-21 16:48:43,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:43,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:43,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:43,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:43,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653428020] [2022-11-21 16:48:43,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653428020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:48:43,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:48:43,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:48:43,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841899956] [2022-11-21 16:48:43,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:48:43,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:48:43,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:43,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:48:43,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:43,379 INFO L87 Difference]: Start difference. First operand 124 states and 197 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:43,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:43,452 INFO L93 Difference]: Finished difference Result 213 states and 338 transitions. [2022-11-21 16:48:43,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:48:43,452 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-21 16:48:43,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:43,454 INFO L225 Difference]: With dead ends: 213 [2022-11-21 16:48:43,454 INFO L226 Difference]: Without dead ends: 211 [2022-11-21 16:48:43,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:43,456 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 20 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:43,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:48:43,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-21 16:48:43,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 206. [2022-11-21 16:48:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 197 states have (on average 1.6598984771573604) internal successors, (327), 205 states have internal predecessors, (327), 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) [2022-11-21 16:48:43,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 327 transitions. [2022-11-21 16:48:43,476 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 327 transitions. Word has length 9 [2022-11-21 16:48:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:43,477 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 327 transitions. [2022-11-21 16:48:43,477 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), 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) [2022-11-21 16:48:43,477 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 327 transitions. [2022-11-21 16:48:43,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:48:43,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:43,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:48:43,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:48:43,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:43,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:43,479 INFO L85 PathProgramCache]: Analyzing trace with hash -26301678, now seen corresponding path program 1 times [2022-11-21 16:48:43,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:43,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378397069] [2022-11-21 16:48:43,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:43,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:43,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:43,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:43,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378397069] [2022-11-21 16:48:43,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378397069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:48:43,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:48:43,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:48:43,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367606061] [2022-11-21 16:48:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:48:43,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:48:43,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:43,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:48:43,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:43,544 INFO L87 Difference]: Start difference. First operand 206 states and 327 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:43,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:43,580 INFO L93 Difference]: Finished difference Result 346 states and 547 transitions. [2022-11-21 16:48:43,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:48:43,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-21 16:48:43,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:43,583 INFO L225 Difference]: With dead ends: 346 [2022-11-21 16:48:43,583 INFO L226 Difference]: Without dead ends: 344 [2022-11-21 16:48:43,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:43,585 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:43,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:48:43,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-11-21 16:48:43,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 331. [2022-11-21 16:48:43,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 322 states have (on average 1.5745341614906831) internal successors, (507), 330 states have internal predecessors, (507), 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) [2022-11-21 16:48:43,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 507 transitions. [2022-11-21 16:48:43,612 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 507 transitions. Word has length 10 [2022-11-21 16:48:43,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:43,612 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 507 transitions. [2022-11-21 16:48:43,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 507 transitions. [2022-11-21 16:48:43,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 16:48:43,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:43,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:48:43,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:48:43,614 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:43,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:43,615 INFO L85 PathProgramCache]: Analyzing trace with hash -815351945, now seen corresponding path program 1 times [2022-11-21 16:48:43,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:43,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621653658] [2022-11-21 16:48:43,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:43,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:43,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:43,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621653658] [2022-11-21 16:48:43,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621653658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:48:43,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:48:43,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:48:43,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750992783] [2022-11-21 16:48:43,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:48:43,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:48:43,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:43,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:48:43,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:43,653 INFO L87 Difference]: Start difference. First operand 331 states and 507 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:43,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:43,691 INFO L93 Difference]: Finished difference Result 550 states and 841 transitions. [2022-11-21 16:48:43,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:48:43,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-21 16:48:43,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:43,694 INFO L225 Difference]: With dead ends: 550 [2022-11-21 16:48:43,694 INFO L226 Difference]: Without dead ends: 548 [2022-11-21 16:48:43,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:48:43,696 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:43,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:48:43,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-11-21 16:48:43,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 543. [2022-11-21 16:48:43,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 534 states have (on average 1.5149812734082397) internal successors, (809), 542 states have internal predecessors, (809), 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) [2022-11-21 16:48:43,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 809 transitions. [2022-11-21 16:48:43,725 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 809 transitions. Word has length 11 [2022-11-21 16:48:43,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:43,726 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 809 transitions. [2022-11-21 16:48:43,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:43,726 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 809 transitions. [2022-11-21 16:48:43,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 16:48:43,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:43,727 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 16:48:43,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:48:43,728 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:43,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:43,728 INFO L85 PathProgramCache]: Analyzing trace with hash -329510763, now seen corresponding path program 1 times [2022-11-21 16:48:43,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:43,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423149772] [2022-11-21 16:48:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:43,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:43,783 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:43,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:43,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423149772] [2022-11-21 16:48:43,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423149772] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:43,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444114175] [2022-11-21 16:48:43,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:43,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:43,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:43,785 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:43,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:48:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:43,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:48:43,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:43,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:43,957 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:43,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444114175] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:43,957 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:43,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-21 16:48:43,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579747752] [2022-11-21 16:48:43,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:43,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:48:43,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:43,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:48:43,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:48:43,960 INFO L87 Difference]: Start difference. First operand 543 states and 809 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:44,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:44,050 INFO L93 Difference]: Finished difference Result 1047 states and 1608 transitions. [2022-11-21 16:48:44,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:48:44,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-21 16:48:44,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:44,055 INFO L225 Difference]: With dead ends: 1047 [2022-11-21 16:48:44,056 INFO L226 Difference]: Without dead ends: 1045 [2022-11-21 16:48:44,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:48:44,058 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 118 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:44,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 116 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:48:44,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2022-11-21 16:48:44,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 904. [2022-11-21 16:48:44,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 895 states have (on average 1.5273743016759778) internal successors, (1367), 903 states have internal predecessors, (1367), 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) [2022-11-21 16:48:44,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1367 transitions. [2022-11-21 16:48:44,096 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1367 transitions. Word has length 15 [2022-11-21 16:48:44,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:44,097 INFO L495 AbstractCegarLoop]: Abstraction has 904 states and 1367 transitions. [2022-11-21 16:48:44,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:44,097 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1367 transitions. [2022-11-21 16:48:44,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 16:48:44,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:44,098 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:48:44,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:48:44,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:44,304 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:44,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:44,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1722862724, now seen corresponding path program 1 times [2022-11-21 16:48:44,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:44,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544296267] [2022-11-21 16:48:44,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:44,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:44,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:44,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544296267] [2022-11-21 16:48:44,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544296267] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:44,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270901943] [2022-11-21 16:48:44,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:44,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:44,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:44,404 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:44,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:48:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:44,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:48:44,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:44,490 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:44,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:44,538 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:44,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270901943] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:44,539 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:44,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-21 16:48:44,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253055692] [2022-11-21 16:48:44,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:44,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:48:44,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:44,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:48:44,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:48:44,541 INFO L87 Difference]: Start difference. First operand 904 states and 1367 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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) [2022-11-21 16:48:44,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:44,650 INFO L93 Difference]: Finished difference Result 1365 states and 2106 transitions. [2022-11-21 16:48:44,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:48:44,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-21 16:48:44,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:44,656 INFO L225 Difference]: With dead ends: 1365 [2022-11-21 16:48:44,670 INFO L226 Difference]: Without dead ends: 1363 [2022-11-21 16:48:44,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:48:44,673 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 84 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:44,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 71 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:48:44,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2022-11-21 16:48:44,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1061. [2022-11-21 16:48:44,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1053 states have (on average 1.5175688509021843) internal successors, (1598), 1060 states have internal predecessors, (1598), 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) [2022-11-21 16:48:44,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1598 transitions. [2022-11-21 16:48:44,800 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1598 transitions. Word has length 17 [2022-11-21 16:48:44,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:44,801 INFO L495 AbstractCegarLoop]: Abstraction has 1061 states and 1598 transitions. [2022-11-21 16:48:44,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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) [2022-11-21 16:48:44,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1598 transitions. [2022-11-21 16:48:44,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 16:48:44,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:44,802 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 16:48:44,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-21 16:48:45,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-21 16:48:45,021 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:45,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:45,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1244341817, now seen corresponding path program 1 times [2022-11-21 16:48:45,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:45,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705796958] [2022-11-21 16:48:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:45,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:45,084 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:45,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:45,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705796958] [2022-11-21 16:48:45,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705796958] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:45,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230520587] [2022-11-21 16:48:45,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:45,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:45,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:45,088 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:45,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:48:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:45,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:48:45,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:45,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:45,294 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:45,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230520587] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:45,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:45,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-21 16:48:45,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912042062] [2022-11-21 16:48:45,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:45,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:48:45,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:45,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:48:45,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:48:45,306 INFO L87 Difference]: Start difference. First operand 1061 states and 1598 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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) [2022-11-21 16:48:45,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:45,499 INFO L93 Difference]: Finished difference Result 2462 states and 3872 transitions. [2022-11-21 16:48:45,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:48:45,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-21 16:48:45,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:45,517 INFO L225 Difference]: With dead ends: 2462 [2022-11-21 16:48:45,517 INFO L226 Difference]: Without dead ends: 2460 [2022-11-21 16:48:45,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:48:45,520 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 121 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:45,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 111 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:48:45,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2022-11-21 16:48:45,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2130. [2022-11-21 16:48:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2122 states have (on average 1.5221489161168709) internal successors, (3230), 2129 states have internal predecessors, (3230), 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) [2022-11-21 16:48:45,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 3230 transitions. [2022-11-21 16:48:45,624 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 3230 transitions. Word has length 19 [2022-11-21 16:48:45,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:45,624 INFO L495 AbstractCegarLoop]: Abstraction has 2130 states and 3230 transitions. [2022-11-21 16:48:45,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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) [2022-11-21 16:48:45,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 3230 transitions. [2022-11-21 16:48:45,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 16:48:45,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:45,631 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1] [2022-11-21 16:48:45,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:48:45,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 16:48:45,838 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:45,839 INFO L85 PathProgramCache]: Analyzing trace with hash -816359916, now seen corresponding path program 2 times [2022-11-21 16:48:45,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:45,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206184903] [2022-11-21 16:48:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:45,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:45,943 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 16:48:45,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:45,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206184903] [2022-11-21 16:48:45,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206184903] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:45,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287715133] [2022-11-21 16:48:45,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:48:45,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:45,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:45,946 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:45,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 16:48:45,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 16:48:45,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:48:45,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:48:45,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:46,059 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 16:48:46,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 16:48:46,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287715133] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:46,125 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:46,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-21 16:48:46,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141377672] [2022-11-21 16:48:46,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:46,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:48:46,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:46,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:48:46,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:48:46,135 INFO L87 Difference]: Start difference. First operand 2130 states and 3230 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:46,230 INFO L93 Difference]: Finished difference Result 2130 states and 3230 transitions. [2022-11-21 16:48:46,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:48:46,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-21 16:48:46,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:46,241 INFO L225 Difference]: With dead ends: 2130 [2022-11-21 16:48:46,241 INFO L226 Difference]: Without dead ends: 2129 [2022-11-21 16:48:46,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:48:46,247 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 51 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:46,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 55 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:48:46,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2022-11-21 16:48:46,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 1799. [2022-11-21 16:48:46,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1792 states have (on average 1.4871651785714286) internal successors, (2665), 1798 states have internal predecessors, (2665), 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) [2022-11-21 16:48:46,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2665 transitions. [2022-11-21 16:48:46,371 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2665 transitions. Word has length 20 [2022-11-21 16:48:46,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:46,371 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 2665 transitions. [2022-11-21 16:48:46,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:46,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2665 transitions. [2022-11-21 16:48:46,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-21 16:48:46,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:46,377 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:48:46,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:48:46,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:46,584 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:46,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:46,584 INFO L85 PathProgramCache]: Analyzing trace with hash -333612156, now seen corresponding path program 1 times [2022-11-21 16:48:46,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:46,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631543516] [2022-11-21 16:48:46,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:46,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:46,664 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:46,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:46,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631543516] [2022-11-21 16:48:46,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631543516] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:46,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250582200] [2022-11-21 16:48:46,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:46,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:46,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:46,668 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:46,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 16:48:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:46,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:48:46,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:46,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:46,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250582200] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:46,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:46,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-21 16:48:46,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8873294] [2022-11-21 16:48:46,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:46,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:48:46,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:46,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:48:46,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:48:46,864 INFO L87 Difference]: Start difference. First operand 1799 states and 2665 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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) [2022-11-21 16:48:47,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:47,005 INFO L93 Difference]: Finished difference Result 3111 states and 4689 transitions. [2022-11-21 16:48:47,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:48:47,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-21 16:48:47,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:47,022 INFO L225 Difference]: With dead ends: 3111 [2022-11-21 16:48:47,022 INFO L226 Difference]: Without dead ends: 3109 [2022-11-21 16:48:47,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:48:47,025 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 96 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:47,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 64 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:48:47,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2022-11-21 16:48:47,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2296. [2022-11-21 16:48:47,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 2290 states have (on average 1.459825327510917) internal successors, (3343), 2295 states have internal predecessors, (3343), 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) [2022-11-21 16:48:47,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 3343 transitions. [2022-11-21 16:48:47,138 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 3343 transitions. Word has length 21 [2022-11-21 16:48:47,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:47,138 INFO L495 AbstractCegarLoop]: Abstraction has 2296 states and 3343 transitions. [2022-11-21 16:48:47,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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) [2022-11-21 16:48:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 3343 transitions. [2022-11-21 16:48:47,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 16:48:47,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:47,140 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2022-11-21 16:48:47,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:48:47,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-21 16:48:47,347 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:47,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:47,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1881216384, now seen corresponding path program 1 times [2022-11-21 16:48:47,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:47,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761860849] [2022-11-21 16:48:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:47,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:47,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:47,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761860849] [2022-11-21 16:48:47,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761860849] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:47,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986427200] [2022-11-21 16:48:47,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:47,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:47,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:47,466 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:47,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 16:48:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:47,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:48:47,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:47,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:47,695 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:47,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986427200] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:47,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:47,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-21 16:48:47,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122864342] [2022-11-21 16:48:47,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:47,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:48:47,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:47,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:48:47,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:48:47,697 INFO L87 Difference]: Start difference. First operand 2296 states and 3343 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:47,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:47,964 INFO L93 Difference]: Finished difference Result 6601 states and 9698 transitions. [2022-11-21 16:48:47,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:48:47,965 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-21 16:48:47,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:47,992 INFO L225 Difference]: With dead ends: 6601 [2022-11-21 16:48:47,992 INFO L226 Difference]: Without dead ends: 6600 [2022-11-21 16:48:47,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:48:47,997 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 173 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:47,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 145 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:48:48,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6600 states. [2022-11-21 16:48:48,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6600 to 5401. [2022-11-21 16:48:48,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5401 states, 5395 states have (on average 1.4556070435588508) internal successors, (7853), 5400 states have internal predecessors, (7853), 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) [2022-11-21 16:48:48,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 7853 transitions. [2022-11-21 16:48:48,233 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 7853 transitions. Word has length 26 [2022-11-21 16:48:48,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:48,234 INFO L495 AbstractCegarLoop]: Abstraction has 5401 states and 7853 transitions. [2022-11-21 16:48:48,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:48,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 7853 transitions. [2022-11-21 16:48:48,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-21 16:48:48,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:48,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2022-11-21 16:48:48,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 16:48:48,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-21 16:48:48,444 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:48,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:48,444 INFO L85 PathProgramCache]: Analyzing trace with hash -205460357, now seen corresponding path program 1 times [2022-11-21 16:48:48,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:48,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843816530] [2022-11-21 16:48:48,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:48,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:48,543 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:48,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:48,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843816530] [2022-11-21 16:48:48,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843816530] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:48,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4018085] [2022-11-21 16:48:48,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:48,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:48,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:48,546 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:48,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 16:48:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:48,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:48:48,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:48,685 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:48,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:48,770 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:48,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4018085] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:48,771 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:48,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-21 16:48:48,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756510387] [2022-11-21 16:48:48,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:48,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:48:48,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:48,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:48:48,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:48:48,774 INFO L87 Difference]: Start difference. First operand 5401 states and 7853 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2022-11-21 16:48:49,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:49,237 INFO L93 Difference]: Finished difference Result 15529 states and 22802 transitions. [2022-11-21 16:48:49,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:48:49,237 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-21 16:48:49,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:49,355 INFO L225 Difference]: With dead ends: 15529 [2022-11-21 16:48:49,356 INFO L226 Difference]: Without dead ends: 15528 [2022-11-21 16:48:49,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:48:49,364 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 172 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:49,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 145 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:48:49,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15528 states. [2022-11-21 16:48:49,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15528 to 12718. [2022-11-21 16:48:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12718 states, 12712 states have (on average 1.4511485210824417) internal successors, (18447), 12717 states have internal predecessors, (18447), 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) [2022-11-21 16:48:50,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12718 states to 12718 states and 18447 transitions. [2022-11-21 16:48:50,035 INFO L78 Accepts]: Start accepts. Automaton has 12718 states and 18447 transitions. Word has length 32 [2022-11-21 16:48:50,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:50,038 INFO L495 AbstractCegarLoop]: Abstraction has 12718 states and 18447 transitions. [2022-11-21 16:48:50,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2022-11-21 16:48:50,038 INFO L276 IsEmpty]: Start isEmpty. Operand 12718 states and 18447 transitions. [2022-11-21 16:48:50,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-21 16:48:50,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:50,043 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1] [2022-11-21 16:48:50,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 16:48:50,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-21 16:48:50,250 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:50,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:50,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1919460695, now seen corresponding path program 2 times [2022-11-21 16:48:50,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:50,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140354750] [2022-11-21 16:48:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:50,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:50,379 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:50,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:50,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140354750] [2022-11-21 16:48:50,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140354750] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:50,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677178129] [2022-11-21 16:48:50,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:48:50,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:50,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:50,382 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:50,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 16:48:50,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:48:50,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:48:50,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:48:50,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:50,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:50,658 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:50,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677178129] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:50,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:50,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-21 16:48:50,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646146953] [2022-11-21 16:48:50,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:50,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:48:50,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:50,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:48:50,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:48:50,661 INFO L87 Difference]: Start difference. First operand 12718 states and 18447 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 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) [2022-11-21 16:48:51,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:51,668 INFO L93 Difference]: Finished difference Result 43313 states and 64320 transitions. [2022-11-21 16:48:51,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:48:51,669 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-21 16:48:51,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:51,776 INFO L225 Difference]: With dead ends: 43313 [2022-11-21 16:48:51,777 INFO L226 Difference]: Without dead ends: 43311 [2022-11-21 16:48:51,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:48:51,796 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 373 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:51,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 227 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:48:51,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43311 states. [2022-11-21 16:48:52,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43311 to 27376. [2022-11-21 16:48:53,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27376 states, 27370 states have (on average 1.4275118743149433) internal successors, (39071), 27375 states have internal predecessors, (39071), 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) [2022-11-21 16:48:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27376 states to 27376 states and 39071 transitions. [2022-11-21 16:48:53,080 INFO L78 Accepts]: Start accepts. Automaton has 27376 states and 39071 transitions. Word has length 36 [2022-11-21 16:48:53,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:53,081 INFO L495 AbstractCegarLoop]: Abstraction has 27376 states and 39071 transitions. [2022-11-21 16:48:53,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 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) [2022-11-21 16:48:53,083 INFO L276 IsEmpty]: Start isEmpty. Operand 27376 states and 39071 transitions. [2022-11-21 16:48:53,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-21 16:48:53,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:53,085 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1] [2022-11-21 16:48:53,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 16:48:53,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-21 16:48:53,292 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:53,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:53,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2018802258, now seen corresponding path program 2 times [2022-11-21 16:48:53,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:53,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898118514] [2022-11-21 16:48:53,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:53,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:53,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:53,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898118514] [2022-11-21 16:48:53,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898118514] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:53,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548681201] [2022-11-21 16:48:53,385 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:48:53,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:53,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:53,386 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:53,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 16:48:53,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:48:53,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:48:53,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:48:53,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:53,552 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:53,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:53,683 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:53,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548681201] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:53,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:53,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-21 16:48:53,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084583709] [2022-11-21 16:48:53,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:53,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:48:53,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:53,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:48:53,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:48:53,686 INFO L87 Difference]: Start difference. First operand 27376 states and 39071 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:56,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:56,037 INFO L93 Difference]: Finished difference Result 93113 states and 136146 transitions. [2022-11-21 16:48:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:48:56,038 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-21 16:48:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:56,278 INFO L225 Difference]: With dead ends: 93113 [2022-11-21 16:48:56,278 INFO L226 Difference]: Without dead ends: 93111 [2022-11-21 16:48:56,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:48:56,307 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 352 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:56,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 227 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:48:56,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93111 states. [2022-11-21 16:48:58,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93111 to 58898. [2022-11-21 16:48:58,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58898 states, 58892 states have (on average 1.405063506078924) internal successors, (82747), 58897 states have internal predecessors, (82747), 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) [2022-11-21 16:48:58,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58898 states to 58898 states and 82747 transitions. [2022-11-21 16:48:58,774 INFO L78 Accepts]: Start accepts. Automaton has 58898 states and 82747 transitions. Word has length 46 [2022-11-21 16:48:58,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:58,776 INFO L495 AbstractCegarLoop]: Abstraction has 58898 states and 82747 transitions. [2022-11-21 16:48:58,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:48:58,776 INFO L276 IsEmpty]: Start isEmpty. Operand 58898 states and 82747 transitions. [2022-11-21 16:48:58,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-21 16:48:58,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:58,781 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2022-11-21 16:48:58,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-21 16:48:58,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 16:48:58,988 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:48:58,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:58,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1183604440, now seen corresponding path program 2 times [2022-11-21 16:48:58,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:58,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019721063] [2022-11-21 16:48:58,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:58,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:59,228 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:59,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:59,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019721063] [2022-11-21 16:48:59,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019721063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:59,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172271808] [2022-11-21 16:48:59,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:48:59,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:59,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:59,231 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:59,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 16:48:59,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:48:59,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:48:59,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 16:48:59,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:59,439 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:59,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:59,697 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:48:59,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172271808] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:59,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:59,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-21 16:48:59,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495263547] [2022-11-21 16:48:59,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:59,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 16:48:59,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:59,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 16:48:59,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:48:59,701 INFO L87 Difference]: Start difference. First operand 58898 states and 82747 transitions. Second operand has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 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) [2022-11-21 16:49:04,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:49:04,914 INFO L93 Difference]: Finished difference Result 207477 states and 294185 transitions. [2022-11-21 16:49:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 16:49:04,914 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-11-21 16:49:04,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:49:05,489 INFO L225 Difference]: With dead ends: 207477 [2022-11-21 16:49:05,489 INFO L226 Difference]: Without dead ends: 207476 [2022-11-21 16:49:05,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:49:05,585 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 569 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:49:05,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 306 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:49:05,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207476 states. [2022-11-21 16:49:10,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207476 to 115068. [2022-11-21 16:49:10,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115068 states, 115062 states have (on average 1.3967860805478785) internal successors, (160717), 115067 states have internal predecessors, (160717), 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) [2022-11-21 16:49:10,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115068 states to 115068 states and 160717 transitions. [2022-11-21 16:49:10,781 INFO L78 Accepts]: Start accepts. Automaton has 115068 states and 160717 transitions. Word has length 58 [2022-11-21 16:49:10,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:49:10,782 INFO L495 AbstractCegarLoop]: Abstraction has 115068 states and 160717 transitions. [2022-11-21 16:49:10,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 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) [2022-11-21 16:49:10,783 INFO L276 IsEmpty]: Start isEmpty. Operand 115068 states and 160717 transitions. [2022-11-21 16:49:10,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-21 16:49:10,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:49:10,805 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2022-11-21 16:49:10,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:11,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-21 16:49:11,012 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:49:11,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:11,012 INFO L85 PathProgramCache]: Analyzing trace with hash 921640519, now seen corresponding path program 2 times [2022-11-21 16:49:11,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:11,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574473278] [2022-11-21 16:49:11,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:11,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:11,198 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:11,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:11,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574473278] [2022-11-21 16:49:11,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574473278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:49:11,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167113314] [2022-11-21 16:49:11,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:49:11,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:49:11,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:11,201 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:49:11,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-21 16:49:11,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:49:11,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:49:11,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 16:49:11,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:11,411 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:11,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:49:11,658 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:11,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167113314] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:49:11,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:49:11,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-21 16:49:11,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477634960] [2022-11-21 16:49:11,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:49:11,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 16:49:11,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:11,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 16:49:11,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:49:11,661 INFO L87 Difference]: Start difference. First operand 115068 states and 160717 transitions. Second operand has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:49:19,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:49:19,879 INFO L93 Difference]: Finished difference Result 405129 states and 571169 transitions. [2022-11-21 16:49:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 16:49:19,880 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-11-21 16:49:19,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:49:20,884 INFO L225 Difference]: With dead ends: 405129 [2022-11-21 16:49:20,885 INFO L226 Difference]: Without dead ends: 405128 [2022-11-21 16:49:20,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:49:20,962 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 438 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:49:20,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 306 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:49:21,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405128 states. [2022-11-21 16:49:30,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405128 to 224758. [2022-11-21 16:49:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224758 states, 224752 states have (on average 1.3887618352673168) internal successors, (312127), 224757 states have internal predecessors, (312127), 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) [2022-11-21 16:49:30,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224758 states to 224758 states and 312127 transitions. [2022-11-21 16:49:30,943 INFO L78 Accepts]: Start accepts. Automaton has 224758 states and 312127 transitions. Word has length 72 [2022-11-21 16:49:30,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:49:30,943 INFO L495 AbstractCegarLoop]: Abstraction has 224758 states and 312127 transitions. [2022-11-21 16:49:30,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:49:30,943 INFO L276 IsEmpty]: Start isEmpty. Operand 224758 states and 312127 transitions. [2022-11-21 16:49:30,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-21 16:49:30,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:49:30,954 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1] [2022-11-21 16:49:30,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:31,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:49:31,161 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 16:49:31,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:31,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1950111273, now seen corresponding path program 3 times [2022-11-21 16:49:31,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:31,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510902693] [2022-11-21 16:49:31,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:31,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:31,421 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:31,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:31,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510902693] [2022-11-21 16:49:31,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510902693] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:49:31,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211974913] [2022-11-21 16:49:31,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:49:31,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:49:31,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:31,424 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:49:31,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b68554f-90b5-4fdb-b999-ee6ad0fc8fe5/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-21 16:49:31,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-21 16:49:31,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:49:31,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-21 16:49:31,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:32,106 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:32,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:49:32,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211974913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:49:32,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:49:32,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12] total 24 [2022-11-21 16:49:32,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145076393] [2022-11-21 16:49:32,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:49:32,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:49:32,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:32,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:49:32,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-11-21 16:49:32,111 INFO L87 Difference]: Start difference. First operand 224758 states and 312127 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 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)