./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- 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-38b53e6 [2022-11-25 17:13:13,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:13:13,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:13:13,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:13:13,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:13:13,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:13:13,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:13:13,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:13:13,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:13:13,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:13:13,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:13:13,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:13:13,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:13:13,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:13:13,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:13:13,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:13:13,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:13:13,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:13:13,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:13:13,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:13:13,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:13:13,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:13:13,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:13:13,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:13:13,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:13:13,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:13:13,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:13:13,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:13:13,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:13:13,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:13:13,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:13:13,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:13:13,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:13:13,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:13:13,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:13:13,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:13:13,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:13:13,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:13:13,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:13:13,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:13:13,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:13:13,792 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:13:13,830 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:13:13,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:13:13,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:13:13,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:13:13,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:13:13,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:13:13,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:13:13,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:13:13,834 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:13:13,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:13:13,838 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:13:13,839 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:13:13,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:13:13,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:13:13,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:13:13,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:13:13,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:13:13,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:13:13,841 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:13:13,841 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:13:13,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:13:13,841 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:13:13,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:13:13,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:13:13,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:13:13,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:13:13,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:13:13,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:13:13,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:13:13,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:13:13,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:13:13,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:13:13,845 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:13:13,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:13:13,845 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:13:13,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:13:13,846 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2022-11-25 17:13:14,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:13:14,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:13:14,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:13:14,146 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:13:14,147 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:13:14,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-25 17:13:17,139 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:13:17,411 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:13:17,411 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-25 17:13:17,419 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/data/a41fce8f6/498c89bdacc04916861475ba630de1fa/FLAGe4f659c6f [2022-11-25 17:13:17,433 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/data/a41fce8f6/498c89bdacc04916861475ba630de1fa [2022-11-25 17:13:17,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:13:17,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:13:17,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:13:17,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:13:17,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:13:17,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c0ba08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17, skipping insertion in model container [2022-11-25 17:13:17,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:13:17,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:13:17,616 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-25 17:13:17,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:13:17,683 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:13:17,695 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-25 17:13:17,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:13:17,737 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:13:17,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17 WrapperNode [2022-11-25 17:13:17,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:13:17,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:13:17,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:13:17,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:13:17,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,780 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 176 [2022-11-25 17:13:17,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:13:17,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:13:17,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:13:17,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:13:17,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,836 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:13:17,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:13:17,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:13:17,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:13:17,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (1/1) ... [2022-11-25 17:13:17,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:13:17,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:17,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:13:17,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:13:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:13:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:13:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-25 17:13:17,928 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-25 17:13:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:13:17,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:13:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 17:13:17,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 17:13:18,004 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:13:18,006 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:13:18,522 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:13:18,535 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:13:18,535 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:13:18,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:13:18 BoogieIcfgContainer [2022-11-25 17:13:18,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:13:18,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:13:18,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:13:18,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:13:18,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:13:17" (1/3) ... [2022-11-25 17:13:18,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eee08bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:13:18, skipping insertion in model container [2022-11-25 17:13:18,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:17" (2/3) ... [2022-11-25 17:13:18,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eee08bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:13:18, skipping insertion in model container [2022-11-25 17:13:18,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:13:18" (3/3) ... [2022-11-25 17:13:18,548 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2022-11-25 17:13:18,567 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:13:18,568 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-25 17:13:18,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:13:18,627 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;@6a0cb97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:13:18,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-25 17:13:18,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 82 states have (on average 1.670731707317073) internal successors, (137), 99 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 17:13:18,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 17:13:18,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:18,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:18,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:18,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:18,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1819356335, now seen corresponding path program 1 times [2022-11-25 17:13:18,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:18,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81466329] [2022-11-25 17:13:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:18,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:13:18,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:18,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81466329] [2022-11-25 17:13:18,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81466329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:18,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:18,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:13:18,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560106341] [2022-11-25 17:13:18,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:18,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:13:18,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:19,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:13:19,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:13:19,040 INFO L87 Difference]: Start difference. First operand has 106 states, 82 states have (on average 1.670731707317073) internal successors, (137), 99 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:19,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:19,210 INFO L93 Difference]: Finished difference Result 257 states and 376 transitions. [2022-11-25 17:13:19,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:13:19,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 17:13:19,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:19,222 INFO L225 Difference]: With dead ends: 257 [2022-11-25 17:13:19,222 INFO L226 Difference]: Without dead ends: 130 [2022-11-25 17:13:19,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:13:19,229 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 83 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:19,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 370 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:19,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-25 17:13:19,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 120. [2022-11-25 17:13:19,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.52) internal successors, (152), 113 states have internal predecessors, (152), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:19,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2022-11-25 17:13:19,279 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 9 [2022-11-25 17:13:19,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:19,279 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2022-11-25 17:13:19,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:19,280 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2022-11-25 17:13:19,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 17:13:19,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:19,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:19,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:13:19,282 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:19,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:19,283 INFO L85 PathProgramCache]: Analyzing trace with hash -179612527, now seen corresponding path program 1 times [2022-11-25 17:13:19,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:19,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844957097] [2022-11-25 17:13:19,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:19,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:19,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:13:19,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:19,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844957097] [2022-11-25 17:13:19,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844957097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:19,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:19,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:13:19,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39124655] [2022-11-25 17:13:19,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:19,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:13:19,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:19,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:13:19,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:13:19,427 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:19,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:19,608 INFO L93 Difference]: Finished difference Result 265 states and 354 transitions. [2022-11-25 17:13:19,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:13:19,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-25 17:13:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:19,611 INFO L225 Difference]: With dead ends: 265 [2022-11-25 17:13:19,611 INFO L226 Difference]: Without dead ends: 148 [2022-11-25 17:13:19,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:13:19,613 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 128 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:19,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 343 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:19,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-11-25 17:13:19,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 129. [2022-11-25 17:13:19,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.5045871559633028) internal successors, (164), 122 states have internal predecessors, (164), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:19,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2022-11-25 17:13:19,644 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 172 transitions. Word has length 14 [2022-11-25 17:13:19,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:19,645 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 172 transitions. [2022-11-25 17:13:19,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:19,645 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 172 transitions. [2022-11-25 17:13:19,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 17:13:19,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:19,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:19,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:13:19,647 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:19,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:19,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1273020929, now seen corresponding path program 1 times [2022-11-25 17:13:19,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:19,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958879584] [2022-11-25 17:13:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:19,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:13:19,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:19,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958879584] [2022-11-25 17:13:19,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958879584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:19,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:19,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:13:19,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400576426] [2022-11-25 17:13:19,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:19,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:13:19,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:19,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:13:19,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:13:19,782 INFO L87 Difference]: Start difference. First operand 129 states and 172 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:19,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:19,881 INFO L93 Difference]: Finished difference Result 156 states and 201 transitions. [2022-11-25 17:13:19,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:13:19,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-25 17:13:19,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:19,884 INFO L225 Difference]: With dead ends: 156 [2022-11-25 17:13:19,884 INFO L226 Difference]: Without dead ends: 154 [2022-11-25 17:13:19,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:13:19,886 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 112 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:19,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 355 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:19,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-25 17:13:19,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 129. [2022-11-25 17:13:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.4862385321100917) internal successors, (162), 122 states have internal predecessors, (162), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:19,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 170 transitions. [2022-11-25 17:13:19,901 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 170 transitions. Word has length 15 [2022-11-25 17:13:19,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:19,901 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 170 transitions. [2022-11-25 17:13:19,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:19,902 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 170 transitions. [2022-11-25 17:13:19,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 17:13:19,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:19,903 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:19,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:13:19,904 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:19,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:19,904 INFO L85 PathProgramCache]: Analyzing trace with hash 550260128, now seen corresponding path program 1 times [2022-11-25 17:13:19,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:19,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536630582] [2022-11-25 17:13:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:19,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:19,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:13:19,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:19,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536630582] [2022-11-25 17:13:19,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536630582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:19,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:19,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:13:19,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866872558] [2022-11-25 17:13:19,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:19,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:13:19,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:19,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:13:19,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:13:19,944 INFO L87 Difference]: Start difference. First operand 129 states and 170 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:19,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:19,974 INFO L93 Difference]: Finished difference Result 137 states and 180 transitions. [2022-11-25 17:13:19,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:13:19,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-25 17:13:19,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:19,976 INFO L225 Difference]: With dead ends: 137 [2022-11-25 17:13:19,977 INFO L226 Difference]: Without dead ends: 136 [2022-11-25 17:13:19,977 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 [2022-11-25 17:13:19,978 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 4 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:19,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:13:19,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-25 17:13:19,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 126. [2022-11-25 17:13:19,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 107 states have (on average 1.4766355140186915) internal successors, (158), 119 states have internal predecessors, (158), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 166 transitions. [2022-11-25 17:13:19,991 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 166 transitions. Word has length 16 [2022-11-25 17:13:19,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:19,992 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 166 transitions. [2022-11-25 17:13:19,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:19,992 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 166 transitions. [2022-11-25 17:13:19,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:13:19,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:19,993 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:19,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:13:19,994 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:19,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:19,995 INFO L85 PathProgramCache]: Analyzing trace with hash -119643288, now seen corresponding path program 1 times [2022-11-25 17:13:19,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:19,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605519647] [2022-11-25 17:13:19,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:19,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:13:20,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:20,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605519647] [2022-11-25 17:13:20,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605519647] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:20,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119711565] [2022-11-25 17:13:20,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:20,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:20,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:20,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:20,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:13:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:20,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:13:20,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:13:20,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:13:20,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119711565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:20,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:13:20,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-25 17:13:20,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296181921] [2022-11-25 17:13:20,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:20,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:13:20,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:20,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:13:20,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:13:20,250 INFO L87 Difference]: Start difference. First operand 126 states and 166 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:20,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:20,302 INFO L93 Difference]: Finished difference Result 155 states and 207 transitions. [2022-11-25 17:13:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:13:20,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-25 17:13:20,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:20,335 INFO L225 Difference]: With dead ends: 155 [2022-11-25 17:13:20,336 INFO L226 Difference]: Without dead ends: 154 [2022-11-25 17:13:20,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:13:20,337 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 16 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:20,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 299 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:13:20,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-25 17:13:20,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 128. [2022-11-25 17:13:20,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 109 states have (on average 1.4770642201834863) internal successors, (161), 121 states have internal predecessors, (161), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:20,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 169 transitions. [2022-11-25 17:13:20,353 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 169 transitions. Word has length 17 [2022-11-25 17:13:20,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:20,353 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 169 transitions. [2022-11-25 17:13:20,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:20,353 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 169 transitions. [2022-11-25 17:13:20,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 17:13:20,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:20,355 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:20,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:20,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:20,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:20,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:20,562 INFO L85 PathProgramCache]: Analyzing trace with hash -171865727, now seen corresponding path program 1 times [2022-11-25 17:13:20,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:20,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823379608] [2022-11-25 17:13:20,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:20,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:13:20,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:20,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823379608] [2022-11-25 17:13:20,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823379608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:20,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:20,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:13:20,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840262354] [2022-11-25 17:13:20,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:20,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:13:20,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:20,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:13:20,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:13:20,612 INFO L87 Difference]: Start difference. First operand 128 states and 169 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:20,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:20,666 INFO L93 Difference]: Finished difference Result 161 states and 215 transitions. [2022-11-25 17:13:20,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:13:20,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-25 17:13:20,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:20,669 INFO L225 Difference]: With dead ends: 161 [2022-11-25 17:13:20,669 INFO L226 Difference]: Without dead ends: 159 [2022-11-25 17:13:20,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:13:20,677 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 22 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:20,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 201 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:13:20,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-25 17:13:20,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 130. [2022-11-25 17:13:20,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 112 states have (on average 1.4553571428571428) internal successors, (163), 123 states have internal predecessors, (163), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:20,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 171 transitions. [2022-11-25 17:13:20,697 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 171 transitions. Word has length 19 [2022-11-25 17:13:20,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:20,697 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 171 transitions. [2022-11-25 17:13:20,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:13:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 171 transitions. [2022-11-25 17:13:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:13:20,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:20,699 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:20,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:13:20,699 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:20,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:20,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1906214428, now seen corresponding path program 1 times [2022-11-25 17:13:20,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:20,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133682220] [2022-11-25 17:13:20,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:20,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:20,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:20,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:13:20,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:20,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133682220] [2022-11-25 17:13:20,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133682220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:20,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:20,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:13:20,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104814702] [2022-11-25 17:13:20,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:20,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:13:20,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:20,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:13:20,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:13:20,802 INFO L87 Difference]: Start difference. First operand 130 states and 171 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:13:20,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:20,907 INFO L93 Difference]: Finished difference Result 193 states and 257 transitions. [2022-11-25 17:13:20,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:13:20,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-11-25 17:13:20,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:20,912 INFO L225 Difference]: With dead ends: 193 [2022-11-25 17:13:20,912 INFO L226 Difference]: Without dead ends: 191 [2022-11-25 17:13:20,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:13:20,913 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 130 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:20,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 277 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:20,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-25 17:13:20,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 161. [2022-11-25 17:13:20,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 142 states have (on average 1.4647887323943662) internal successors, (208), 153 states have internal predecessors, (208), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:20,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 216 transitions. [2022-11-25 17:13:20,934 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 216 transitions. Word has length 24 [2022-11-25 17:13:20,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:20,934 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 216 transitions. [2022-11-25 17:13:20,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:13:20,934 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 216 transitions. [2022-11-25 17:13:20,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:13:20,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:20,941 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:20,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:13:20,941 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:20,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:20,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1934841784, now seen corresponding path program 1 times [2022-11-25 17:13:20,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:20,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499755626] [2022-11-25 17:13:20,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:20,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,029 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:13:21,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:21,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499755626] [2022-11-25 17:13:21,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499755626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:21,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:21,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:13:21,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594737130] [2022-11-25 17:13:21,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:21,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:13:21,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:21,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:13:21,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:13:21,033 INFO L87 Difference]: Start difference. First operand 161 states and 216 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:13:21,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:21,123 INFO L93 Difference]: Finished difference Result 185 states and 245 transitions. [2022-11-25 17:13:21,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:13:21,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-11-25 17:13:21,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:21,125 INFO L225 Difference]: With dead ends: 185 [2022-11-25 17:13:21,125 INFO L226 Difference]: Without dead ends: 183 [2022-11-25 17:13:21,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:13:21,126 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 131 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:21,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 277 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:21,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-25 17:13:21,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 154. [2022-11-25 17:13:21,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.451851851851852) internal successors, (196), 146 states have internal predecessors, (196), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:21,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 204 transitions. [2022-11-25 17:13:21,139 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 204 transitions. Word has length 24 [2022-11-25 17:13:21,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:21,141 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 204 transitions. [2022-11-25 17:13:21,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:13:21,141 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 204 transitions. [2022-11-25 17:13:21,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 17:13:21,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:21,144 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:21,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:13:21,145 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:21,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:21,145 INFO L85 PathProgramCache]: Analyzing trace with hash -735396699, now seen corresponding path program 1 times [2022-11-25 17:13:21,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:21,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969818921] [2022-11-25 17:13:21,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:21,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:13:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:13:21,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:21,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969818921] [2022-11-25 17:13:21,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969818921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:21,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:21,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:13:21,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382723972] [2022-11-25 17:13:21,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:21,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:13:21,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:21,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:13:21,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:13:21,253 INFO L87 Difference]: Start difference. First operand 154 states and 204 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:13:21,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:21,338 INFO L93 Difference]: Finished difference Result 178 states and 236 transitions. [2022-11-25 17:13:21,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:13:21,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-11-25 17:13:21,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:21,341 INFO L225 Difference]: With dead ends: 178 [2022-11-25 17:13:21,341 INFO L226 Difference]: Without dead ends: 176 [2022-11-25 17:13:21,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:13:21,344 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 128 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:21,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 270 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-25 17:13:21,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 148. [2022-11-25 17:13:21,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 131 states have (on average 1.4274809160305344) internal successors, (187), 140 states have internal predecessors, (187), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:21,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2022-11-25 17:13:21,356 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 31 [2022-11-25 17:13:21,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:21,356 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2022-11-25 17:13:21,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:13:21,356 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2022-11-25 17:13:21,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 17:13:21,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:21,360 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:21,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:13:21,360 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:21,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:21,361 INFO L85 PathProgramCache]: Analyzing trace with hash -764024055, now seen corresponding path program 1 times [2022-11-25 17:13:21,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:21,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576335497] [2022-11-25 17:13:21,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:21,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:13:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:13:21,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:21,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576335497] [2022-11-25 17:13:21,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576335497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:21,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:21,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:13:21,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24260723] [2022-11-25 17:13:21,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:21,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:13:21,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:21,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:13:21,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:13:21,459 INFO L87 Difference]: Start difference. First operand 148 states and 195 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:13:21,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:21,539 INFO L93 Difference]: Finished difference Result 170 states and 224 transitions. [2022-11-25 17:13:21,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:13:21,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-11-25 17:13:21,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:21,541 INFO L225 Difference]: With dead ends: 170 [2022-11-25 17:13:21,541 INFO L226 Difference]: Without dead ends: 168 [2022-11-25 17:13:21,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:13:21,542 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 129 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:21,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 268 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:21,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-25 17:13:21,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 139. [2022-11-25 17:13:21,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 131 states have internal predecessors, (175), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:21,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 183 transitions. [2022-11-25 17:13:21,557 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 183 transitions. Word has length 31 [2022-11-25 17:13:21,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:21,557 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 183 transitions. [2022-11-25 17:13:21,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:13:21,557 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 183 transitions. [2022-11-25 17:13:21,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-25 17:13:21,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:21,558 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:21,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:13:21,560 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:21,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:21,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1822749775, now seen corresponding path program 1 times [2022-11-25 17:13:21,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:21,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125906881] [2022-11-25 17:13:21,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:21,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:13:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:13:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:13:21,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:21,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125906881] [2022-11-25 17:13:21,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125906881] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:21,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308241893] [2022-11-25 17:13:21,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:21,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:21,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:21,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:21,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:13:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:21,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-25 17:13:21,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:21,877 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:13:21,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:13:22,067 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:22,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308241893] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:13:22,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:13:22,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10, 8] total 18 [2022-11-25 17:13:22,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448570947] [2022-11-25 17:13:22,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:13:22,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 17:13:22,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:22,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 17:13:22,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-25 17:13:22,069 INFO L87 Difference]: Start difference. First operand 139 states and 183 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-25 17:13:22,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:22,525 INFO L93 Difference]: Finished difference Result 454 states and 581 transitions. [2022-11-25 17:13:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 17:13:22,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 37 [2022-11-25 17:13:22,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:22,528 INFO L225 Difference]: With dead ends: 454 [2022-11-25 17:13:22,528 INFO L226 Difference]: Without dead ends: 275 [2022-11-25 17:13:22,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2022-11-25 17:13:22,530 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 274 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:22,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 937 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:13:22,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-11-25 17:13:22,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 140. [2022-11-25 17:13:22,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 131 states have internal predecessors, (169), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:22,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 177 transitions. [2022-11-25 17:13:22,544 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 177 transitions. Word has length 37 [2022-11-25 17:13:22,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:22,545 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 177 transitions. [2022-11-25 17:13:22,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-25 17:13:22,545 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 177 transitions. [2022-11-25 17:13:22,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-25 17:13:22,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:22,546 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:22,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:22,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 17:13:22,752 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:22,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:22,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1347360979, now seen corresponding path program 1 times [2022-11-25 17:13:22,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:22,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948548843] [2022-11-25 17:13:22,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:22,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:22,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:22,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:13:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:13:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 17:13:22,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:22,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948548843] [2022-11-25 17:13:22,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948548843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:22,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:22,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:13:22,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889740237] [2022-11-25 17:13:22,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:22,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:13:22,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:22,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:13:22,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:13:22,954 INFO L87 Difference]: Start difference. First operand 140 states and 177 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:23,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:23,090 INFO L93 Difference]: Finished difference Result 266 states and 315 transitions. [2022-11-25 17:13:23,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:13:23,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 54 [2022-11-25 17:13:23,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:23,093 INFO L225 Difference]: With dead ends: 266 [2022-11-25 17:13:23,093 INFO L226 Difference]: Without dead ends: 214 [2022-11-25 17:13:23,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:13:23,094 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 108 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:23,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 572 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:23,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-25 17:13:23,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 140. [2022-11-25 17:13:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.346774193548387) internal successors, (167), 131 states have internal predecessors, (167), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:13:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 175 transitions. [2022-11-25 17:13:23,111 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 175 transitions. Word has length 54 [2022-11-25 17:13:23,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:23,111 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 175 transitions. [2022-11-25 17:13:23,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:23,112 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 175 transitions. [2022-11-25 17:13:23,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 17:13:23,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:23,113 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:23,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:13:23,114 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:23,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:23,115 INFO L85 PathProgramCache]: Analyzing trace with hash 264007364, now seen corresponding path program 2 times [2022-11-25 17:13:23,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:23,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576972394] [2022-11-25 17:13:23,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:23,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:23,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:23,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:23,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:13:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:23,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:13:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 17:13:23,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:23,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576972394] [2022-11-25 17:13:23,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576972394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:23,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:23,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:13:23,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832071147] [2022-11-25 17:13:23,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:23,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:13:23,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:23,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:13:23,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:13:23,283 INFO L87 Difference]: Start difference. First operand 140 states and 175 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:23,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:23,434 INFO L93 Difference]: Finished difference Result 262 states and 313 transitions. [2022-11-25 17:13:23,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:13:23,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2022-11-25 17:13:23,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:23,436 INFO L225 Difference]: With dead ends: 262 [2022-11-25 17:13:23,436 INFO L226 Difference]: Without dead ends: 226 [2022-11-25 17:13:23,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:13:23,437 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 160 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:23,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 679 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:23,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-11-25 17:13:23,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 165. [2022-11-25 17:13:23,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 148 states have (on average 1.337837837837838) internal successors, (198), 155 states have internal predecessors, (198), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-25 17:13:23,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 207 transitions. [2022-11-25 17:13:23,452 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 207 transitions. Word has length 58 [2022-11-25 17:13:23,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:23,453 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 207 transitions. [2022-11-25 17:13:23,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:23,454 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 207 transitions. [2022-11-25 17:13:23,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 17:13:23,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:23,455 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:23,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:13:23,455 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:23,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:23,455 INFO L85 PathProgramCache]: Analyzing trace with hash 264009286, now seen corresponding path program 1 times [2022-11-25 17:13:23,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:23,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050907291] [2022-11-25 17:13:23,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:23,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:23,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:23,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:23,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:13:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:23,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:13:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:23,648 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 17:13:23,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:23,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050907291] [2022-11-25 17:13:23,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050907291] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:23,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112889891] [2022-11-25 17:13:23,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:23,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:23,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:23,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:23,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:13:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:23,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 17:13:23,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:23,850 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 17:13:23,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:13:23,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112889891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:23,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:13:23,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2022-11-25 17:13:23,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196380565] [2022-11-25 17:13:23,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:23,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:13:23,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:23,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:13:23,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:13:23,855 INFO L87 Difference]: Start difference. First operand 165 states and 207 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:13:24,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:24,028 INFO L93 Difference]: Finished difference Result 306 states and 374 transitions. [2022-11-25 17:13:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:13:24,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2022-11-25 17:13:24,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:24,030 INFO L225 Difference]: With dead ends: 306 [2022-11-25 17:13:24,030 INFO L226 Difference]: Without dead ends: 254 [2022-11-25 17:13:24,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:13:24,031 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 166 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:24,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 599 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:24,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-11-25 17:13:24,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 187. [2022-11-25 17:13:24,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 168 states have (on average 1.3095238095238095) internal successors, (220), 175 states have internal predecessors, (220), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-25 17:13:24,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 233 transitions. [2022-11-25 17:13:24,044 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 233 transitions. Word has length 58 [2022-11-25 17:13:24,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:24,045 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 233 transitions. [2022-11-25 17:13:24,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:13:24,045 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 233 transitions. [2022-11-25 17:13:24,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-25 17:13:24,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:24,046 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:24,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:24,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 17:13:24,252 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:24,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:24,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1694284065, now seen corresponding path program 1 times [2022-11-25 17:13:24,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:24,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392347982] [2022-11-25 17:13:24,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:24,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:24,331 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete [2022-11-25 17:13:24,333 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete [2022-11-25 17:13:24,334 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete [2022-11-25 17:13:24,335 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete [2022-11-25 17:13:24,338 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete [2022-11-25 17:13:24,340 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete [2022-11-25 17:13:24,341 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete [2022-11-25 17:13:24,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:24,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:13:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:24,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:13:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:24,469 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-25 17:13:24,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:24,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392347982] [2022-11-25 17:13:24,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392347982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:24,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:13:24,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:13:24,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223775373] [2022-11-25 17:13:24,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:24,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:13:24,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:24,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:13:24,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:13:24,471 INFO L87 Difference]: Start difference. First operand 187 states and 233 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:24,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:24,751 INFO L93 Difference]: Finished difference Result 425 states and 495 transitions. [2022-11-25 17:13:24,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:13:24,752 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 63 [2022-11-25 17:13:24,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:24,754 INFO L225 Difference]: With dead ends: 425 [2022-11-25 17:13:24,754 INFO L226 Difference]: Without dead ends: 391 [2022-11-25 17:13:24,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:13:24,755 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 340 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:24,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 961 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:13:24,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-11-25 17:13:24,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 211. [2022-11-25 17:13:24,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 191 states have (on average 1.3193717277486912) internal successors, (252), 198 states have internal predecessors, (252), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 17:13:24,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 267 transitions. [2022-11-25 17:13:24,773 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 267 transitions. Word has length 63 [2022-11-25 17:13:24,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:24,774 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 267 transitions. [2022-11-25 17:13:24,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:24,774 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 267 transitions. [2022-11-25 17:13:24,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-25 17:13:24,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:24,775 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:24,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:13:24,775 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:24,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:24,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1694282143, now seen corresponding path program 1 times [2022-11-25 17:13:24,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:24,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95402312] [2022-11-25 17:13:24,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:24,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:24,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:24,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:24,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:13:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:24,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:13:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:24,907 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:24,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:24,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95402312] [2022-11-25 17:13:24,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95402312] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:24,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888983390] [2022-11-25 17:13:24,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:24,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:24,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:24,911 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:24,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:13:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:24,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 17:13:24,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:25,068 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 17:13:25,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:13:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 17:13:25,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888983390] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:13:25,263 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:13:25,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 14 [2022-11-25 17:13:25,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79269071] [2022-11-25 17:13:25,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:13:25,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 17:13:25,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:25,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 17:13:25,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:13:25,266 INFO L87 Difference]: Start difference. First operand 211 states and 267 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-25 17:13:25,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:25,744 INFO L93 Difference]: Finished difference Result 455 states and 577 transitions. [2022-11-25 17:13:25,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 17:13:25,744 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 63 [2022-11-25 17:13:25,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:25,746 INFO L225 Difference]: With dead ends: 455 [2022-11-25 17:13:25,746 INFO L226 Difference]: Without dead ends: 275 [2022-11-25 17:13:25,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2022-11-25 17:13:25,747 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 229 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:25,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 510 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:13:25,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-11-25 17:13:25,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 204. [2022-11-25 17:13:25,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 184 states have (on average 1.2880434782608696) internal successors, (237), 191 states have internal predecessors, (237), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 17:13:25,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 252 transitions. [2022-11-25 17:13:25,773 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 252 transitions. Word has length 63 [2022-11-25 17:13:25,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:25,773 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 252 transitions. [2022-11-25 17:13:25,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-25 17:13:25,774 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 252 transitions. [2022-11-25 17:13:25,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 17:13:25,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:25,775 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:25,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-25 17:13:25,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 17:13:25,980 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:25,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:25,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1797395163, now seen corresponding path program 1 times [2022-11-25 17:13:25,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:25,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877108916] [2022-11-25 17:13:25,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:25,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:26,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:26,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:26,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:13:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:26,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 17:13:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:26,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:26,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877108916] [2022-11-25 17:13:26,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877108916] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:26,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575094792] [2022-11-25 17:13:26,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:26,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:26,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:26,097 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:26,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:13:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:26,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:13:26,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:13:26,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:13:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:26,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575094792] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:13:26,376 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:13:26,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-11-25 17:13:26,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945042429] [2022-11-25 17:13:26,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:13:26,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 17:13:26,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:26,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 17:13:26,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:13:26,378 INFO L87 Difference]: Start difference. First operand 204 states and 252 transitions. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:13:26,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:26,702 INFO L93 Difference]: Finished difference Result 736 states and 940 transitions. [2022-11-25 17:13:26,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:13:26,703 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2022-11-25 17:13:26,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:26,706 INFO L225 Difference]: With dead ends: 736 [2022-11-25 17:13:26,706 INFO L226 Difference]: Without dead ends: 560 [2022-11-25 17:13:26,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=232, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:13:26,707 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 253 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:26,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 441 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:26,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-11-25 17:13:26,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 231. [2022-11-25 17:13:26,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 211 states have (on average 1.2843601895734598) internal successors, (271), 218 states have internal predecessors, (271), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 17:13:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 286 transitions. [2022-11-25 17:13:26,744 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 286 transitions. Word has length 66 [2022-11-25 17:13:26,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:26,744 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 286 transitions. [2022-11-25 17:13:26,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:13:26,745 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 286 transitions. [2022-11-25 17:13:26,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-25 17:13:26,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:26,746 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:26,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:26,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 17:13:26,951 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:26,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:26,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1155393431, now seen corresponding path program 1 times [2022-11-25 17:13:26,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:26,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594798740] [2022-11-25 17:13:26,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:26,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:27,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:13:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:13:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:27,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:27,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594798740] [2022-11-25 17:13:27,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594798740] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:27,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213486728] [2022-11-25 17:13:27,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:27,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:27,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:27,158 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:27,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:13:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:27,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:13:27,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:27,305 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:13:27,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:13:27,428 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:27,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213486728] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:13:27,429 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:13:27,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-25 17:13:27,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161202300] [2022-11-25 17:13:27,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:13:27,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 17:13:27,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:27,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 17:13:27,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:13:27,431 INFO L87 Difference]: Start difference. First operand 231 states and 286 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:13:28,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:28,170 INFO L93 Difference]: Finished difference Result 547 states and 690 transitions. [2022-11-25 17:13:28,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:13:28,171 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2022-11-25 17:13:28,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:28,172 INFO L225 Difference]: With dead ends: 547 [2022-11-25 17:13:28,173 INFO L226 Difference]: Without dead ends: 357 [2022-11-25 17:13:28,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2022-11-25 17:13:28,174 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 93 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:28,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 704 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:13:28,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-11-25 17:13:28,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 224. [2022-11-25 17:13:28,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.2598039215686274) internal successors, (257), 211 states have internal predecessors, (257), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 17:13:28,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 272 transitions. [2022-11-25 17:13:28,230 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 272 transitions. Word has length 70 [2022-11-25 17:13:28,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:28,231 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 272 transitions. [2022-11-25 17:13:28,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:13:28,231 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 272 transitions. [2022-11-25 17:13:28,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 17:13:28,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:28,238 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:28,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:28,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 17:13:28,444 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:28,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:28,445 INFO L85 PathProgramCache]: Analyzing trace with hash 216023387, now seen corresponding path program 2 times [2022-11-25 17:13:28,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:28,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129222235] [2022-11-25 17:13:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:28,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:28,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:28,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:28,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 17:13:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:28,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 17:13:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:28,729 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:28,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:28,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129222235] [2022-11-25 17:13:28,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129222235] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:28,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36482518] [2022-11-25 17:13:28,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:13:28,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:28,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:28,736 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:28,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:13:28,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:13:28,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:13:28,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:13:28,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:28,987 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 26 proven. 87 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:13:28,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:13:29,282 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:29,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36482518] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:13:29,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:13:29,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-11-25 17:13:29,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167294850] [2022-11-25 17:13:29,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:13:29,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-25 17:13:29,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:29,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-25 17:13:29,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2022-11-25 17:13:29,285 INFO L87 Difference]: Start difference. First operand 224 states and 272 transitions. Second operand has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:13:29,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:29,915 INFO L93 Difference]: Finished difference Result 1140 states and 1468 transitions. [2022-11-25 17:13:29,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 17:13:29,915 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2022-11-25 17:13:29,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:29,920 INFO L225 Difference]: With dead ends: 1140 [2022-11-25 17:13:29,920 INFO L226 Difference]: Without dead ends: 964 [2022-11-25 17:13:29,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=488, Invalid=772, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 17:13:29,922 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 775 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:29,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 739 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:13:29,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2022-11-25 17:13:29,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 271. [2022-11-25 17:13:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 251 states have (on average 1.254980079681275) internal successors, (315), 258 states have internal predecessors, (315), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 17:13:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 330 transitions. [2022-11-25 17:13:29,963 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 330 transitions. Word has length 86 [2022-11-25 17:13:29,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:29,963 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 330 transitions. [2022-11-25 17:13:29,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:13:29,964 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 330 transitions. [2022-11-25 17:13:29,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-25 17:13:29,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:29,965 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:29,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:30,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:30,171 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:30,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:30,172 INFO L85 PathProgramCache]: Analyzing trace with hash -584775959, now seen corresponding path program 2 times [2022-11-25 17:13:30,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:30,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679426423] [2022-11-25 17:13:30,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:30,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:30,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:30,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 17:13:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 17:13:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:30,486 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:30,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:30,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679426423] [2022-11-25 17:13:30,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679426423] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:30,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594518376] [2022-11-25 17:13:30,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:13:30,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:30,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:30,489 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:30,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:13:30,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:13:30,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:13:30,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 17:13:30,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 17:13:31,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:13:31,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594518376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:31,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:13:31,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 21 [2022-11-25 17:13:31,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448393801] [2022-11-25 17:13:31,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:31,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 17:13:31,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:31,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 17:13:31,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-11-25 17:13:31,091 INFO L87 Difference]: Start difference. First operand 271 states and 330 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:31,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:31,959 INFO L93 Difference]: Finished difference Result 557 states and 649 transitions. [2022-11-25 17:13:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 17:13:31,960 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 90 [2022-11-25 17:13:31,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:31,962 INFO L225 Difference]: With dead ends: 557 [2022-11-25 17:13:31,962 INFO L226 Difference]: Without dead ends: 523 [2022-11-25 17:13:31,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 17:13:31,963 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 488 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:31,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1323 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:13:31,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-11-25 17:13:31,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 302. [2022-11-25 17:13:31,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 281 states have (on average 1.2633451957295374) internal successors, (355), 288 states have internal predecessors, (355), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-25 17:13:31,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 372 transitions. [2022-11-25 17:13:31,996 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 372 transitions. Word has length 90 [2022-11-25 17:13:31,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:31,996 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 372 transitions. [2022-11-25 17:13:31,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:31,997 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 372 transitions. [2022-11-25 17:13:31,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-25 17:13:31,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:31,998 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:32,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:32,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:32,204 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:32,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:32,205 INFO L85 PathProgramCache]: Analyzing trace with hash -527519579, now seen corresponding path program 1 times [2022-11-25 17:13:32,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:32,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436922456] [2022-11-25 17:13:32,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:32,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:32,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:32,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 17:13:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 17:13:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-25 17:13:32,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:32,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436922456] [2022-11-25 17:13:32,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436922456] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:32,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918722560] [2022-11-25 17:13:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:32,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:32,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:32,368 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:32,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:13:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:32,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:13:32,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:32,491 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-25 17:13:32,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:13:32,595 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-25 17:13:32,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918722560] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:13:32,595 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:13:32,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-11-25 17:13:32,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142439931] [2022-11-25 17:13:32,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:13:32,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:13:32,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:32,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:13:32,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:13:32,597 INFO L87 Difference]: Start difference. First operand 302 states and 372 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 17:13:32,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:32,711 INFO L93 Difference]: Finished difference Result 480 states and 586 transitions. [2022-11-25 17:13:32,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:13:32,711 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 90 [2022-11-25 17:13:32,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:32,714 INFO L225 Difference]: With dead ends: 480 [2022-11-25 17:13:32,714 INFO L226 Difference]: Without dead ends: 424 [2022-11-25 17:13:32,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:13:32,715 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 232 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:32,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 692 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:32,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-11-25 17:13:32,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 326. [2022-11-25 17:13:32,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 305 states have (on average 1.2622950819672132) internal successors, (385), 309 states have internal predecessors, (385), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-25 17:13:32,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 402 transitions. [2022-11-25 17:13:32,746 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 402 transitions. Word has length 90 [2022-11-25 17:13:32,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:32,746 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 402 transitions. [2022-11-25 17:13:32,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 17:13:32,747 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 402 transitions. [2022-11-25 17:13:32,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-25 17:13:32,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:32,748 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:32,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:32,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-25 17:13:32,960 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:32,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:32,960 INFO L85 PathProgramCache]: Analyzing trace with hash -527517657, now seen corresponding path program 1 times [2022-11-25 17:13:32,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:32,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700884370] [2022-11-25 17:13:32,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:32,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:33,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:33,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:33,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 17:13:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:33,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 17:13:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:33,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:33,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700884370] [2022-11-25 17:13:33,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700884370] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:33,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205770207] [2022-11-25 17:13:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:33,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:33,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:33,288 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:33,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 17:13:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:33,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 17:13:33,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:33,555 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-25 17:13:33,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:13:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-25 17:13:33,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205770207] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:13:33,810 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:13:33,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 20 [2022-11-25 17:13:33,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065840163] [2022-11-25 17:13:33,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:13:33,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-25 17:13:33,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:33,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-25 17:13:33,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:13:33,813 INFO L87 Difference]: Start difference. First operand 326 states and 402 transitions. Second operand has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-25 17:13:34,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:34,523 INFO L93 Difference]: Finished difference Result 741 states and 924 transitions. [2022-11-25 17:13:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 17:13:34,523 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 90 [2022-11-25 17:13:34,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:34,526 INFO L225 Difference]: With dead ends: 741 [2022-11-25 17:13:34,526 INFO L226 Difference]: Without dead ends: 507 [2022-11-25 17:13:34,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=163, Invalid=649, Unknown=0, NotChecked=0, Total=812 [2022-11-25 17:13:34,529 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 292 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:34,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1117 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:13:34,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-11-25 17:13:34,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 326. [2022-11-25 17:13:34,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 305 states have (on average 1.2491803278688525) internal successors, (381), 309 states have internal predecessors, (381), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-25 17:13:34,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 398 transitions. [2022-11-25 17:13:34,565 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 398 transitions. Word has length 90 [2022-11-25 17:13:34,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:34,566 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 398 transitions. [2022-11-25 17:13:34,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-25 17:13:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 398 transitions. [2022-11-25 17:13:34,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 17:13:34,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:34,568 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:34,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:34,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-25 17:13:34,774 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:34,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:34,774 INFO L85 PathProgramCache]: Analyzing trace with hash -29290607, now seen corresponding path program 3 times [2022-11-25 17:13:34,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:34,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659311381] [2022-11-25 17:13:34,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:34,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:34,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:34,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:35,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 17:13:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:35,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:13:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:35,157 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 4 proven. 121 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:35,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:35,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659311381] [2022-11-25 17:13:35,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659311381] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:35,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082701701] [2022-11-25 17:13:35,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:13:35,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:35,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:35,159 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:35,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 17:13:35,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 17:13:35,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:13:35,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-25 17:13:35,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-11-25 17:13:35,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:13:35,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082701701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:35,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:13:35,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2022-11-25 17:13:35,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196078230] [2022-11-25 17:13:35,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:35,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:13:35,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:35,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:13:35,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:13:35,334 INFO L87 Difference]: Start difference. First operand 326 states and 398 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:35,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:35,506 INFO L93 Difference]: Finished difference Result 389 states and 463 transitions. [2022-11-25 17:13:35,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:13:35,506 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 95 [2022-11-25 17:13:35,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:35,508 INFO L225 Difference]: With dead ends: 389 [2022-11-25 17:13:35,508 INFO L226 Difference]: Without dead ends: 387 [2022-11-25 17:13:35,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:13:35,509 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 151 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:35,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 722 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:35,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-25 17:13:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 317. [2022-11-25 17:13:35,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 296 states have (on average 1.2533783783783783) internal successors, (371), 300 states have internal predecessors, (371), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-25 17:13:35,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 388 transitions. [2022-11-25 17:13:35,541 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 388 transitions. Word has length 95 [2022-11-25 17:13:35,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:35,542 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 388 transitions. [2022-11-25 17:13:35,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:35,542 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 388 transitions. [2022-11-25 17:13:35,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 17:13:35,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:35,544 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:35,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:35,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:35,748 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:35,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:35,749 INFO L85 PathProgramCache]: Analyzing trace with hash 27967695, now seen corresponding path program 2 times [2022-11-25 17:13:35,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:35,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550103576] [2022-11-25 17:13:35,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:35,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:35,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:35,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:36,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 17:13:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:36,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:13:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 4 proven. 121 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:13:36,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:36,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550103576] [2022-11-25 17:13:36,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550103576] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:36,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840067246] [2022-11-25 17:13:36,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:13:36,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:36,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:36,146 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:36,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 17:13:36,351 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 17:13:36,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:13:36,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-25 17:13:36,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-11-25 17:13:36,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:13:36,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840067246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:36,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:13:36,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2022-11-25 17:13:36,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330717740] [2022-11-25 17:13:36,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:36,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:13:36,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:36,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:13:36,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-11-25 17:13:36,491 INFO L87 Difference]: Start difference. First operand 317 states and 388 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:36,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:36,711 INFO L93 Difference]: Finished difference Result 407 states and 481 transitions. [2022-11-25 17:13:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:13:36,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 95 [2022-11-25 17:13:36,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:36,714 INFO L225 Difference]: With dead ends: 407 [2022-11-25 17:13:36,714 INFO L226 Difference]: Without dead ends: 376 [2022-11-25 17:13:36,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2022-11-25 17:13:36,715 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 209 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:36,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 591 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:13:36,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-11-25 17:13:36,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 312. [2022-11-25 17:13:36,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 291 states have (on average 1.2474226804123711) internal successors, (363), 295 states have internal predecessors, (363), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-25 17:13:36,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 380 transitions. [2022-11-25 17:13:36,748 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 380 transitions. Word has length 95 [2022-11-25 17:13:36,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:36,749 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 380 transitions. [2022-11-25 17:13:36,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:13:36,749 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 380 transitions. [2022-11-25 17:13:36,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-25 17:13:36,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:36,750 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:36,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:36,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-25 17:13:36,956 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:36,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:36,957 INFO L85 PathProgramCache]: Analyzing trace with hash 375111080, now seen corresponding path program 1 times [2022-11-25 17:13:36,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:36,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808289892] [2022-11-25 17:13:36,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:36,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:37,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:37,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:37,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 17:13:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:37,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:13:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:37,343 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 127 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 17:13:37,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:37,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808289892] [2022-11-25 17:13:37,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808289892] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:37,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253581607] [2022-11-25 17:13:37,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:37,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:37,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:37,347 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:37,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 17:13:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:37,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-25 17:13:37,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:37,729 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 38 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:13:37,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:13:38,176 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 127 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 17:13:38,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253581607] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:13:38,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:13:38,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-11-25 17:13:38,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414512450] [2022-11-25 17:13:38,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:13:38,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 17:13:38,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:38,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 17:13:38,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=522, Unknown=0, NotChecked=0, Total=756 [2022-11-25 17:13:38,179 INFO L87 Difference]: Start difference. First operand 312 states and 380 transitions. Second operand has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:13:52,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:52,435 INFO L93 Difference]: Finished difference Result 817 states and 1030 transitions. [2022-11-25 17:13:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-25 17:13:52,436 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 100 [2022-11-25 17:13:52,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:52,439 INFO L225 Difference]: With dead ends: 817 [2022-11-25 17:13:52,439 INFO L226 Difference]: Without dead ends: 579 [2022-11-25 17:13:52,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=639, Invalid=1166, Unknown=1, NotChecked=0, Total=1806 [2022-11-25 17:13:52,443 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 191 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:52,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1113 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 17:13:52,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-11-25 17:13:52,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 313. [2022-11-25 17:13:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 292 states have (on average 1.2157534246575343) internal successors, (355), 296 states have internal predecessors, (355), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-25 17:13:52,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 372 transitions. [2022-11-25 17:13:52,485 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 372 transitions. Word has length 100 [2022-11-25 17:13:52,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:52,485 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 372 transitions. [2022-11-25 17:13:52,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:13:52,486 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 372 transitions. [2022-11-25 17:13:52,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-25 17:13:52,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:52,488 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:52,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:52,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:52,694 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:52,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:52,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1300138776, now seen corresponding path program 1 times [2022-11-25 17:13:52,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:52,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019000138] [2022-11-25 17:13:52,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:52,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:52,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:53,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 17:13:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:53,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 17:13:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 17:13:53,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:53,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019000138] [2022-11-25 17:13:53,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019000138] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:53,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554726280] [2022-11-25 17:13:53,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:53,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:53,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:53,333 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:53,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 17:13:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:53,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 17:13:53,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:53,764 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 26 proven. 483 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:13:53,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:13:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 17:13:54,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554726280] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:13:54,700 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:13:54,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2022-11-25 17:13:54,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787389782] [2022-11-25 17:13:54,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:13:54,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-25 17:13:54,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:54,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-25 17:13:54,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2022-11-25 17:13:54,703 INFO L87 Difference]: Start difference. First operand 313 states and 372 transitions. Second operand has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:13:56,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:56,412 INFO L93 Difference]: Finished difference Result 1997 states and 2579 transitions. [2022-11-25 17:13:56,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-25 17:13:56,413 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 131 [2022-11-25 17:13:56,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:56,419 INFO L225 Difference]: With dead ends: 1997 [2022-11-25 17:13:56,419 INFO L226 Difference]: Without dead ends: 1781 [2022-11-25 17:13:56,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1744, Invalid=2812, Unknown=0, NotChecked=0, Total=4556 [2022-11-25 17:13:56,422 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 1511 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:56,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1017 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:13:56,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-11-25 17:13:56,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 392. [2022-11-25 17:13:56,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 371 states have (on average 1.2129380053908356) internal successors, (450), 375 states have internal predecessors, (450), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-25 17:13:56,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 467 transitions. [2022-11-25 17:13:56,505 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 467 transitions. Word has length 131 [2022-11-25 17:13:56,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:56,505 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 467 transitions. [2022-11-25 17:13:56,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:13:56,506 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 467 transitions. [2022-11-25 17:13:56,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-25 17:13:56,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:56,508 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:56,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:56,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-25 17:13:56,713 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:13:56,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:56,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1457790758, now seen corresponding path program 2 times [2022-11-25 17:13:56,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:56,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038163271] [2022-11-25 17:13:56,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:56,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:56,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:56,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:13:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:57,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:13:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:57,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 17:13:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:57,608 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 4 proven. 622 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 17:13:57,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:57,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038163271] [2022-11-25 17:13:57,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038163271] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:57,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892741567] [2022-11-25 17:13:57,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:13:57,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:57,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:57,611 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:57,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 17:13:57,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:13:57,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:13:57,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 17:13:57,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:58,233 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2022-11-25 17:13:58,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:13:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2022-11-25 17:13:59,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892741567] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:13:59,123 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:13:59,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 9] total 37 [2022-11-25 17:13:59,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075549168] [2022-11-25 17:13:59,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:13:59,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-25 17:13:59,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:59,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-25 17:13:59,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1219, Unknown=0, NotChecked=0, Total=1332 [2022-11-25 17:13:59,126 INFO L87 Difference]: Start difference. First operand 392 states and 467 transitions. Second operand has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-25 17:14:02,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:14:02,076 INFO L93 Difference]: Finished difference Result 1178 states and 1431 transitions. [2022-11-25 17:14:02,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-25 17:14:02,077 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 145 [2022-11-25 17:14:02,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:14:02,081 INFO L225 Difference]: With dead ends: 1178 [2022-11-25 17:14:02,081 INFO L226 Difference]: Without dead ends: 958 [2022-11-25 17:14:02,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=460, Invalid=2962, Unknown=0, NotChecked=0, Total=3422 [2022-11-25 17:14:02,083 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 585 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 4429 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:14:02,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 4429 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 17:14:02,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2022-11-25 17:14:02,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 430. [2022-11-25 17:14:02,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 407 states have (on average 1.2235872235872236) internal successors, (498), 409 states have internal predecessors, (498), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2022-11-25 17:14:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 521 transitions. [2022-11-25 17:14:02,147 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 521 transitions. Word has length 145 [2022-11-25 17:14:02,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:14:02,147 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 521 transitions. [2022-11-25 17:14:02,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-25 17:14:02,147 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 521 transitions. [2022-11-25 17:14:02,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-25 17:14:02,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:14:02,150 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:14:02,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-11-25 17:14:02,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-25 17:14:02,355 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:14:02,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:14:02,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1324169322, now seen corresponding path program 1 times [2022-11-25 17:14:02,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:14:02,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878420184] [2022-11-25 17:14:02,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:02,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:14:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:02,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:14:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:14:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:03,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 17:14:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:03,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 17:14:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 4 proven. 690 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 17:14:03,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:14:03,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878420184] [2022-11-25 17:14:03,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878420184] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:14:03,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111032830] [2022-11-25 17:14:03,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:03,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:14:03,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:14:03,371 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:14:03,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 17:14:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:03,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-25 17:14:03,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:14:03,835 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2022-11-25 17:14:03,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:14:03,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111032830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:14:03,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:14:03,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21] total 30 [2022-11-25 17:14:03,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564598322] [2022-11-25 17:14:03,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:14:03,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:14:03,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:14:03,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:14:03,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2022-11-25 17:14:03,837 INFO L87 Difference]: Start difference. First operand 430 states and 521 transitions. Second operand has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:14:04,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:14:04,150 INFO L93 Difference]: Finished difference Result 517 states and 616 transitions. [2022-11-25 17:14:04,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:14:04,151 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 151 [2022-11-25 17:14:04,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:14:04,153 INFO L225 Difference]: With dead ends: 517 [2022-11-25 17:14:04,153 INFO L226 Difference]: Without dead ends: 515 [2022-11-25 17:14:04,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 17:14:04,154 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 154 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:14:04,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 706 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:14:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-11-25 17:14:04,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 449. [2022-11-25 17:14:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 426 states have (on average 1.2183098591549295) internal successors, (519), 428 states have internal predecessors, (519), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2022-11-25 17:14:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 542 transitions. [2022-11-25 17:14:04,213 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 542 transitions. Word has length 151 [2022-11-25 17:14:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:14:04,214 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 542 transitions. [2022-11-25 17:14:04,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:14:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 542 transitions. [2022-11-25 17:14:04,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-25 17:14:04,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:14:04,216 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:14:04,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 17:14:04,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-25 17:14:04,423 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:14:04,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:14:04,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2078784474, now seen corresponding path program 1 times [2022-11-25 17:14:04,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:14:04,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967744173] [2022-11-25 17:14:04,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:04,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:14:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:04,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:14:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:04,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:14:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 17:14:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:04,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 17:14:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:04,543 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-11-25 17:14:04,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:14:04,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967744173] [2022-11-25 17:14:04,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967744173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:14:04,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:14:04,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:14:04,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853161252] [2022-11-25 17:14:04,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:14:04,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:14:04,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:14:04,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:14:04,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:14:04,545 INFO L87 Difference]: Start difference. First operand 449 states and 542 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:14:04,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:14:04,672 INFO L93 Difference]: Finished difference Result 765 states and 944 transitions. [2022-11-25 17:14:04,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:14:04,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 151 [2022-11-25 17:14:04,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:14:04,676 INFO L225 Difference]: With dead ends: 765 [2022-11-25 17:14:04,676 INFO L226 Difference]: Without dead ends: 493 [2022-11-25 17:14:04,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:14:04,681 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 4 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:14:04,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 265 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:14:04,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-11-25 17:14:04,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 469. [2022-11-25 17:14:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 446 states have (on average 1.2085201793721974) internal successors, (539), 448 states have internal predecessors, (539), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2022-11-25 17:14:04,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 562 transitions. [2022-11-25 17:14:04,745 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 562 transitions. Word has length 151 [2022-11-25 17:14:04,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:14:04,746 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 562 transitions. [2022-11-25 17:14:04,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:14:04,746 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 562 transitions. [2022-11-25 17:14:04,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-25 17:14:04,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:14:04,749 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:14:04,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-25 17:14:04,749 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:14:04,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:14:04,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1134006928, now seen corresponding path program 1 times [2022-11-25 17:14:04,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:14:04,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096094438] [2022-11-25 17:14:04,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:04,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:14:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:14:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:04,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:14:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:05,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 17:14:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:05,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 17:14:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:05,078 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2022-11-25 17:14:05,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:14:05,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096094438] [2022-11-25 17:14:05,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096094438] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:14:05,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666049794] [2022-11-25 17:14:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:05,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:14:05,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:14:05,081 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:14:05,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 17:14:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:05,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-25 17:14:05,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:14:05,356 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-11-25 17:14:05,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:14:05,547 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2022-11-25 17:14:05,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666049794] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:14:05,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:14:05,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 24 [2022-11-25 17:14:05,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128960423] [2022-11-25 17:14:05,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:14:05,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 17:14:05,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:14:05,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 17:14:05,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:14:05,550 INFO L87 Difference]: Start difference. First operand 469 states and 562 transitions. Second operand has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 17:14:07,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:14:07,019 INFO L93 Difference]: Finished difference Result 1400 states and 1613 transitions. [2022-11-25 17:14:07,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-25 17:14:07,020 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) Word has length 152 [2022-11-25 17:14:07,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:14:07,025 INFO L225 Difference]: With dead ends: 1400 [2022-11-25 17:14:07,026 INFO L226 Difference]: Without dead ends: 1351 [2022-11-25 17:14:07,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=455, Invalid=2625, Unknown=0, NotChecked=0, Total=3080 [2022-11-25 17:14:07,028 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 1010 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:14:07,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 2683 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 17:14:07,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-11-25 17:14:07,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 505. [2022-11-25 17:14:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 480 states have (on average 1.2145833333333333) internal successors, (583), 479 states have internal predecessors, (583), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (22), 21 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-25 17:14:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 612 transitions. [2022-11-25 17:14:07,104 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 612 transitions. Word has length 152 [2022-11-25 17:14:07,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:14:07,104 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 612 transitions. [2022-11-25 17:14:07,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 17:14:07,105 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 612 transitions. [2022-11-25 17:14:07,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-25 17:14:07,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:14:07,107 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:14:07,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-25 17:14:07,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:14:07,313 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:14:07,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:14:07,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1134005006, now seen corresponding path program 1 times [2022-11-25 17:14:07,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:14:07,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722868879] [2022-11-25 17:14:07,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:07,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:14:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:14:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:14:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:08,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 17:14:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:08,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 17:14:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:08,214 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 4 proven. 696 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:14:08,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:14:08,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722868879] [2022-11-25 17:14:08,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722868879] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:14:08,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580742640] [2022-11-25 17:14:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:08,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:14:08,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:14:08,216 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:14:08,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-25 17:14:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:08,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-25 17:14:08,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:14:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-11-25 17:14:08,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:14:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-11-25 17:14:09,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580742640] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:14:09,880 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:14:09,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 10] total 40 [2022-11-25 17:14:09,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316458184] [2022-11-25 17:14:09,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:14:09,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-25 17:14:09,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:14:09,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-25 17:14:09,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1438, Unknown=0, NotChecked=0, Total=1560 [2022-11-25 17:14:09,883 INFO L87 Difference]: Start difference. First operand 505 states and 612 transitions. Second operand has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-25 17:14:14,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:14:14,156 INFO L93 Difference]: Finished difference Result 1457 states and 1760 transitions. [2022-11-25 17:14:14,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-11-25 17:14:14,157 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 152 [2022-11-25 17:14:14,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:14:14,161 INFO L225 Difference]: With dead ends: 1457 [2022-11-25 17:14:14,161 INFO L226 Difference]: Without dead ends: 1124 [2022-11-25 17:14:14,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=627, Invalid=4485, Unknown=0, NotChecked=0, Total=5112 [2022-11-25 17:14:14,164 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 675 mSDsluCounter, 5416 mSDsCounter, 0 mSdLazyCounter, 3204 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 5686 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:14:14,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 5686 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3204 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 17:14:14,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2022-11-25 17:14:14,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 519. [2022-11-25 17:14:14,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 494 states have (on average 1.2186234817813766) internal successors, (602), 492 states have internal predecessors, (602), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (22), 22 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-25 17:14:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 631 transitions. [2022-11-25 17:14:14,240 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 631 transitions. Word has length 152 [2022-11-25 17:14:14,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:14:14,241 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 631 transitions. [2022-11-25 17:14:14,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-25 17:14:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 631 transitions. [2022-11-25 17:14:14,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-25 17:14:14,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:14:14,244 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 17, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:14:14,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-25 17:14:14,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:14:14,449 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:14:14,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:14:14,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2041814602, now seen corresponding path program 1 times [2022-11-25 17:14:14,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:14:14,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092205584] [2022-11-25 17:14:14,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:14,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:14:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:14:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:14,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:14:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:15,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 17:14:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:15,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 17:14:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 4 proven. 787 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 17:14:15,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:14:15,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092205584] [2022-11-25 17:14:15,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092205584] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:14:15,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132076057] [2022-11-25 17:14:15,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:15,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:14:15,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:14:15,387 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:14:15,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-25 17:14:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:15,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-25 17:14:15,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:14:16,300 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 38 proven. 765 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:14:16,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:14:17,500 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 4 proven. 787 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 17:14:17,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132076057] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:14:17,500 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:14:17,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 61 [2022-11-25 17:14:17,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217201302] [2022-11-25 17:14:17,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:14:17,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-11-25 17:14:17,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:14:17,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-11-25 17:14:17,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=814, Invalid=2846, Unknown=0, NotChecked=0, Total=3660 [2022-11-25 17:14:17,504 INFO L87 Difference]: Start difference. First operand 519 states and 631 transitions. Second operand has 61 states, 61 states have (on average 5.672131147540983) internal successors, (346), 61 states have internal predecessors, (346), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:14:34,511 WARN L233 SmtUtils]: Spent 13.70s on a formula simplification. DAG size of input: 66 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:14:50,591 WARN L233 SmtUtils]: Spent 14.94s on a formula simplification. DAG size of input: 62 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:14:52,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:08,386 WARN L233 SmtUtils]: Spent 8.63s on a formula simplification. DAG size of input: 58 DAG size of output: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:15:20,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:22,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:35,480 WARN L233 SmtUtils]: Spent 7.73s on a formula simplification. DAG size of input: 82 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:15:45,642 WARN L233 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 88 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:15:58,427 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 82 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:16:03,584 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 67 DAG size of output: 24 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:16:17,224 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 76 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:16:47,150 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 64 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:17:06,583 WARN L233 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 58 DAG size of output: 16 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:18:51,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:51,489 INFO L93 Difference]: Finished difference Result 1567 states and 1977 transitions. [2022-11-25 17:18:51,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-25 17:18:51,490 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 5.672131147540983) internal successors, (346), 61 states have internal predecessors, (346), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 157 [2022-11-25 17:18:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:51,494 INFO L225 Difference]: With dead ends: 1567 [2022-11-25 17:18:51,494 INFO L226 Difference]: Without dead ends: 1198 [2022-11-25 17:18:51,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2483 ImplicationChecksByTransitivity, 264.4s TimeCoverageRelationStatistics Valid=2880, Invalid=7172, Unknown=48, NotChecked=0, Total=10100 [2022-11-25 17:18:51,499 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 959 mSDsluCounter, 2915 mSDsCounter, 0 mSdLazyCounter, 4114 mSolverCounterSat, 82 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 4198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 4114 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:51,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 3067 Invalid, 4198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 4114 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2022-11-25 17:18:51,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-25 17:18:51,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 557. [2022-11-25 17:18:51,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 532 states have (on average 1.1954887218045114) internal successors, (636), 530 states have internal predecessors, (636), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (22), 22 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-25 17:18:51,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 665 transitions. [2022-11-25 17:18:51,583 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 665 transitions. Word has length 157 [2022-11-25 17:18:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:51,584 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 665 transitions. [2022-11-25 17:18:51,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 5.672131147540983) internal successors, (346), 61 states have internal predecessors, (346), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:18:51,584 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 665 transitions. [2022-11-25 17:18:51,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-25 17:18:51,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:51,587 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:51,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-25 17:18:51,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-25 17:18:51,794 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:18:51,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:51,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1056938998, now seen corresponding path program 2 times [2022-11-25 17:18:51,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:51,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902662779] [2022-11-25 17:18:51,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:51,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:18:51,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:18:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:18:51,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:18:51,961 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:18:51,962 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-25 17:18:51,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-25 17:18:51,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-25 17:18:51,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-25 17:18:51,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-25 17:18:51,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-25 17:18:51,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-25 17:18:51,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-25 17:18:51,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-25 17:18:51,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-25 17:18:51,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-25 17:18:51,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-25 17:18:51,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-25 17:18:51,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-25 17:18:51,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-25 17:18:51,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-25 17:18:51,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-25 17:18:51,970 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:51,974 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:18:52,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:18:52 BoogieIcfgContainer [2022-11-25 17:18:52,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:18:52,041 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:18:52,041 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:18:52,041 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:18:52,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:13:18" (3/4) ... [2022-11-25 17:18:52,045 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:18:52,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:18:52,046 INFO L158 Benchmark]: Toolchain (without parser) took 334608.96ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 150.6MB in the beginning and 254.1MB in the end (delta: -103.5MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2022-11-25 17:18:52,046 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:18:52,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.06ms. Allocated memory is still 182.5MB. Free memory was 150.1MB in the beginning and 137.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:18:52,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.01ms. Allocated memory is still 182.5MB. Free memory was 137.0MB in the beginning and 134.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:18:52,047 INFO L158 Benchmark]: Boogie Preprocessor took 66.15ms. Allocated memory is still 182.5MB. Free memory was 134.9MB in the beginning and 132.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:18:52,047 INFO L158 Benchmark]: RCFGBuilder took 689.26ms. Allocated memory is still 182.5MB. Free memory was 132.8MB in the beginning and 110.8MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 17:18:52,047 INFO L158 Benchmark]: TraceAbstraction took 333499.98ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 109.7MB in the beginning and 255.2MB in the end (delta: -145.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:18:52,048 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 318.8MB. Free memory was 255.2MB in the beginning and 254.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:18:52,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.06ms. Allocated memory is still 182.5MB. Free memory was 150.1MB in the beginning and 137.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.01ms. Allocated memory is still 182.5MB. Free memory was 137.0MB in the beginning and 134.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.15ms. Allocated memory is still 182.5MB. Free memory was 134.9MB in the beginning and 132.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 689.26ms. Allocated memory is still 182.5MB. Free memory was 132.8MB in the beginning and 110.8MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 333499.98ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 109.7MB in the beginning and 255.2MB in the end (delta: -145.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 318.8MB. Free memory was 255.2MB in the beginning and 254.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 76, overapproximation of bitwiseAnd at line 171. Possible FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; VAL [ea=-127, eb=-128] [L238] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L238] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=-127, eb=-128] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=1744830464, e=-24, m=0, res=1744830464] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=1744830464, __retres4=1744830464, e=-24, m=0, res=1744830464] [L239] RET, EXPR base2flt(1, 0) VAL [base2flt(1, 0)=1744830464, ea=-127, eb=-128, zero=0] [L239] one = base2flt(1, 0) [L240] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=-127, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=0] [L77] EXPR e + 128 VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=0] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=-127, \old(m)=16777216, __retres4=16777216, e=-127, m=0, res=16777216] [L80] return (__retres4); VAL [\old(e)=-127, \old(m)=16777216, \result=16777216, __retres4=16777216, e=-127, m=0, res=16777216] [L240] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=16777216, ea=-127, eb=-128, ma=16777216, one=1744830464, zero=0] [L240] a = base2flt(ma, ea) [L241] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-128, \old(m)=16777217] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L29] COND FALSE !(! m) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L57] COND TRUE 1 VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L77] EXPR e + 128 VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=-128, \old(m)=16777217, __retres4=16777217, e=-128, m=16777217, res=16777217] [L80] return (__retres4); VAL [\old(e)=-128, \old(m)=16777217, \result=-36028797002186751, __retres4=16777217, e=-128, m=16777217, res=16777217] [L241] RET, EXPR base2flt(mb, eb) VAL [a=16777216, base2flt(mb, eb)=-36028797002186751, ea=-127, eb=-128, ma=16777216, mb=16777217, one=1744830464, zero=0] [L241] b = base2flt(mb, eb) [L243] COND FALSE !(b < zero) VAL [a=16777216, b=16777217, ea=-127, eb=-128, ma=16777216, mb=16777217, one=1744830464, zero=0] [L246] COND TRUE b > zero [L247] tmp = 1 VAL [a=16777216, b=16777217, ea=-127, eb=-128, ma=16777216, mb=16777217, one=1744830464, tmp=1, zero=0] [L251] sb = tmp VAL [a=16777216, b=16777217, ea=-127, eb=-128, ma=16777216, mb=16777217, one=1744830464, sb=1, tmp=1, zero=0] [L254] CALL mulflt(a, b) [L148] unsigned int res ; [L149] unsigned int ma ; [L150] unsigned int mb ; [L151] unsigned long long accu ; [L152] int ea ; [L153] int eb ; [L154] unsigned int tmp ; [L155] unsigned int __retres10 ; VAL [\old(a)=16777216, \old(b)=16777217, a=16777216, b=16777217] [L158] COND TRUE a < b [L159] tmp = a [L160] a = b [L161] b = tmp VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, tmp=16777216] [L165] COND FALSE !(! b) VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, tmp=16777216] [L171] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, ma=0, tmp=16777216] [L172] (int )(a >> 24U) - 128 VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, ma=0, tmp=16777216] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 106 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 333.4s, OverallIterations: 33, TraceHistogramMax: 24, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 305.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 9776 SdHoareTripleChecker+Valid, 20.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9742 mSDsluCounter, 32401 SdHoareTripleChecker+Invalid, 18.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28931 mSDsCounter, 538 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16278 IncrementalHoareTripleChecker+Invalid, 16818 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 538 mSolverCounterUnsat, 3470 mSDtfsCounter, 16278 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3965 GetRequests, 3238 SyntacticMatches, 0 SemanticMatches, 727 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6758 ImplicationChecksByTransitivity, 289.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=557occurred in iteration=32, InterpolantAutomatonStates: 554, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 32 MinimizatonAttempts, 6977 StatesRemovedByMinimization, 32 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 19.0s InterpolantComputationTime, 4386 NumberOfCodeBlocks, 4242 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 5474 ConstructedInterpolants, 0 QuantifiedInterpolants, 20584 SizeOfPredicates, 72 NumberOfNonLiveVariables, 4173 ConjunctsInSsa, 349 ConjunctsInUnsatCore, 64 InterpolantComputations, 19 PerfectInterpolantSequences, 8448/15565 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 17:18:52,273 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-25 17:18:52,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- 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-38b53e6 [2022-11-25 17:18:54,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:18:54,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:18:54,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:18:54,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:18:54,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:18:54,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:18:54,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:18:54,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:18:54,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:18:54,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:18:54,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:18:54,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:18:54,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:18:54,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:18:54,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:18:54,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:18:54,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:18:54,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:18:54,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:18:54,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:18:54,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:18:54,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:18:54,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:18:54,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:18:54,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:18:54,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:18:54,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:18:54,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:18:54,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:18:54,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:18:54,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:18:54,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:18:54,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:18:54,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:18:54,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:18:54,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:18:54,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:18:54,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:18:54,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:18:54,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:18:54,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2022-11-25 17:18:54,601 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:18:54,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:18:54,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:18:54,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:18:54,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:18:54,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:18:54,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:18:54,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:18:54,606 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:18:54,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:18:54,606 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:18:54,607 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:18:54,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:18:54,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:18:54,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:18:54,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:18:54,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:18:54,608 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:18:54,609 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:18:54,609 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:18:54,609 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:18:54,610 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:18:54,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:18:54,610 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:18:54,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:18:54,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:18:54,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:18:54,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:18:54,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:18:54,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:18:54,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:18:54,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:18:54,613 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:18:54,613 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:18:54,614 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:18:54,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:18:54,614 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:18:54,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:18:54,615 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:18:54,615 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2022-11-25 17:18:54,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:18:54,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:18:54,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:18:54,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:18:54,983 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:18:54,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-25 17:18:58,010 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:18:58,234 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:18:58,234 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-25 17:18:58,248 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/data/756f17897/15ff0c98a6d740b09f261a3854a1fa25/FLAG4349b147f [2022-11-25 17:18:58,267 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/data/756f17897/15ff0c98a6d740b09f261a3854a1fa25 [2022-11-25 17:18:58,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:18:58,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:18:58,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:18:58,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:18:58,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:18:58,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cabf0ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58, skipping insertion in model container [2022-11-25 17:18:58,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:18:58,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:18:58,450 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-25 17:18:58,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:18:58,524 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:18:58,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-25 17:18:58,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:18:58,585 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:18:58,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58 WrapperNode [2022-11-25 17:18:58,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:18:58,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:18:58,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:18:58,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:18:58,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,659 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 120 [2022-11-25 17:18:58,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:18:58,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:18:58,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:18:58,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:18:58,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,742 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:18:58,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:18:58,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:18:58,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:18:58,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (1/1) ... [2022-11-25 17:18:58,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:18:58,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:18:58,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:18:58,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:18:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:18:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:18:58,873 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-25 17:18:58,873 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-25 17:18:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:18:58,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:18:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 17:18:58,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 17:18:58,972 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:18:58,975 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:18:59,556 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:18:59,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:18:59,575 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:18:59,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:18:59 BoogieIcfgContainer [2022-11-25 17:18:59,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:18:59,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:18:59,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:18:59,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:18:59,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:18:58" (1/3) ... [2022-11-25 17:18:59,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd781db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:18:59, skipping insertion in model container [2022-11-25 17:18:59,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:58" (2/3) ... [2022-11-25 17:18:59,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd781db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:18:59, skipping insertion in model container [2022-11-25 17:18:59,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:18:59" (3/3) ... [2022-11-25 17:18:59,591 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2022-11-25 17:18:59,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:18:59,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-25 17:18:59,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:18:59,688 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;@2b2e952, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:18:59,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-25 17:18:59,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 59 states have (on average 1.6610169491525424) internal successors, (98), 76 states have internal predecessors, (98), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 17:18:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 17:18:59,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:59,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:59,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:18:59,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:59,709 INFO L85 PathProgramCache]: Analyzing trace with hash 598641474, now seen corresponding path program 1 times [2022-11-25 17:18:59,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:18:59,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97585490] [2022-11-25 17:18:59,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:59,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:18:59,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:18:59,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:18:59,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 17:18:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:59,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 17:18:59,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:18:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:59,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:18:59,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:18:59,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97585490] [2022-11-25 17:18:59,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97585490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:59,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:59,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:18:59,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656841183] [2022-11-25 17:18:59,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:59,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:18:59,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:18:59,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:18:59,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:18:59,911 INFO L87 Difference]: Start difference. First operand has 83 states, 59 states have (on average 1.6610169491525424) internal successors, (98), 76 states have internal predecessors, (98), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:59,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:59,966 INFO L93 Difference]: Finished difference Result 154 states and 217 transitions. [2022-11-25 17:18:59,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:18:59,969 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 17:18:59,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:59,996 INFO L225 Difference]: With dead ends: 154 [2022-11-25 17:18:59,996 INFO L226 Difference]: Without dead ends: 56 [2022-11-25 17:19:00,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:19:00,003 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:00,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:19:00,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-25 17:19:00,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-25 17:19:00,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 50 states have internal predecessors, (59), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:00,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2022-11-25 17:19:00,047 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 9 [2022-11-25 17:19:00,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:00,047 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2022-11-25 17:19:00,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:19:00,048 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2022-11-25 17:19:00,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 17:19:00,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:00,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:00,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:00,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:00,261 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:00,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:00,262 INFO L85 PathProgramCache]: Analyzing trace with hash 597700208, now seen corresponding path program 1 times [2022-11-25 17:19:00,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:00,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356703621] [2022-11-25 17:19:00,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:00,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:00,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:00,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:00,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 17:19:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:00,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:19:00,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:00,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:00,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:19:00,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:00,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356703621] [2022-11-25 17:19:00,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356703621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:19:00,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:19:00,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:19:00,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162630013] [2022-11-25 17:19:00,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:19:00,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:19:00,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:00,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:19:00,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:19:00,408 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:19:00,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:00,530 INFO L93 Difference]: Finished difference Result 117 states and 141 transitions. [2022-11-25 17:19:00,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:19:00,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 17:19:00,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:00,536 INFO L225 Difference]: With dead ends: 117 [2022-11-25 17:19:00,536 INFO L226 Difference]: Without dead ends: 64 [2022-11-25 17:19:00,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:19:00,538 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 9 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:00,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 178 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:19:00,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-25 17:19:00,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2022-11-25 17:19:00,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 48 states have (on average 1.3125) internal successors, (63), 54 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:00,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2022-11-25 17:19:00,551 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 9 [2022-11-25 17:19:00,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:00,551 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2022-11-25 17:19:00,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:19:00,551 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2022-11-25 17:19:00,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 17:19:00,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:00,552 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:00,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:00,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:00,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:00,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:00,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1774435898, now seen corresponding path program 1 times [2022-11-25 17:19:00,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:00,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276204274] [2022-11-25 17:19:00,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:00,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:00,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:00,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:00,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 17:19:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:00,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:19:00,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:00,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:00,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:19:00,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:00,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276204274] [2022-11-25 17:19:00,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276204274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:19:00,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:19:00,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:19:00,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835897172] [2022-11-25 17:19:00,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:19:00,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:19:00,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:00,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:19:00,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:19:00,868 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:00,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:00,962 INFO L93 Difference]: Finished difference Result 149 states and 180 transitions. [2022-11-25 17:19:00,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:19:00,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-25 17:19:00,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:00,965 INFO L225 Difference]: With dead ends: 149 [2022-11-25 17:19:00,965 INFO L226 Difference]: Without dead ends: 98 [2022-11-25 17:19:00,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:19:00,967 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 55 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:00,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 169 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:19:00,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-25 17:19:00,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 91. [2022-11-25 17:19:00,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 77 states have (on average 1.3246753246753247) internal successors, (102), 83 states have internal predecessors, (102), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:00,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 110 transitions. [2022-11-25 17:19:00,981 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 110 transitions. Word has length 16 [2022-11-25 17:19:00,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:00,981 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 110 transitions. [2022-11-25 17:19:00,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:00,982 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2022-11-25 17:19:00,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 17:19:00,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:00,983 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:01,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:01,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:01,195 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:01,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:01,195 INFO L85 PathProgramCache]: Analyzing trace with hash 795135288, now seen corresponding path program 1 times [2022-11-25 17:19:01,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:01,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099410495] [2022-11-25 17:19:01,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:01,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:01,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:01,199 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:01,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 17:19:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:01,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:19:01,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:01,327 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:19:01,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:01,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099410495] [2022-11-25 17:19:01,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099410495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:19:01,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:19:01,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:19:01,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645700324] [2022-11-25 17:19:01,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:19:01,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:19:01,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:01,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:19:01,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:19:01,331 INFO L87 Difference]: Start difference. First operand 91 states and 110 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:01,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:01,426 INFO L93 Difference]: Finished difference Result 160 states and 189 transitions. [2022-11-25 17:19:01,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:19:01,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-25 17:19:01,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:01,428 INFO L225 Difference]: With dead ends: 160 [2022-11-25 17:19:01,428 INFO L226 Difference]: Without dead ends: 90 [2022-11-25 17:19:01,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:19:01,430 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 38 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:01,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 238 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:19:01,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-25 17:19:01,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2022-11-25 17:19:01,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 72 states have internal predecessors, (85), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:01,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2022-11-25 17:19:01,441 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 21 [2022-11-25 17:19:01,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:01,442 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2022-11-25 17:19:01,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:01,443 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2022-11-25 17:19:01,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 17:19:01,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:01,444 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:01,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:01,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:01,655 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:01,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:01,656 INFO L85 PathProgramCache]: Analyzing trace with hash 795026184, now seen corresponding path program 1 times [2022-11-25 17:19:01,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:01,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69790637] [2022-11-25 17:19:01,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:01,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:01,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:01,658 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:01,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 17:19:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:01,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:19:01,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:01,791 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:01,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:19:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:01,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:01,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69790637] [2022-11-25 17:19:01,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69790637] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:19:01,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:19:01,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-25 17:19:01,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490013007] [2022-11-25 17:19:01,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:19:01,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:19:01,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:01,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:19:01,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:19:01,971 INFO L87 Difference]: Start difference. First operand 80 states and 93 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:02,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:02,633 INFO L93 Difference]: Finished difference Result 171 states and 209 transitions. [2022-11-25 17:19:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:19:02,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-25 17:19:02,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:02,638 INFO L225 Difference]: With dead ends: 171 [2022-11-25 17:19:02,638 INFO L226 Difference]: Without dead ends: 117 [2022-11-25 17:19:02,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:19:02,639 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 189 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:02,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 228 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:19:02,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-25 17:19:02,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 81. [2022-11-25 17:19:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 68 states have (on average 1.25) internal successors, (85), 73 states have internal predecessors, (85), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:02,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 93 transitions. [2022-11-25 17:19:02,653 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 93 transitions. Word has length 21 [2022-11-25 17:19:02,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:02,654 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 93 transitions. [2022-11-25 17:19:02,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:02,655 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 93 transitions. [2022-11-25 17:19:02,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 17:19:02,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:02,656 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:02,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-25 17:19:02,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:02,871 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:02,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:02,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1056807626, now seen corresponding path program 1 times [2022-11-25 17:19:02,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:02,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689418615] [2022-11-25 17:19:02,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:02,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:02,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:02,873 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:02,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-25 17:19:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:02,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:19:02,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:02,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:19:03,081 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:03,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:03,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689418615] [2022-11-25 17:19:03,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689418615] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:19:03,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:19:03,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-25 17:19:03,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350483998] [2022-11-25 17:19:03,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:19:03,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:19:03,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:03,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:19:03,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:19:03,084 INFO L87 Difference]: Start difference. First operand 81 states and 93 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:03,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:03,458 INFO L93 Difference]: Finished difference Result 174 states and 204 transitions. [2022-11-25 17:19:03,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:19:03,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-25 17:19:03,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:03,460 INFO L225 Difference]: With dead ends: 174 [2022-11-25 17:19:03,460 INFO L226 Difference]: Without dead ends: 118 [2022-11-25 17:19:03,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:19:03,462 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 94 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:03,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 482 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:19:03,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-25 17:19:03,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 99. [2022-11-25 17:19:03,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 86 states have (on average 1.2325581395348837) internal successors, (106), 91 states have internal predecessors, (106), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:03,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2022-11-25 17:19:03,479 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 114 transitions. Word has length 26 [2022-11-25 17:19:03,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:03,480 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 114 transitions. [2022-11-25 17:19:03,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:03,480 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 114 transitions. [2022-11-25 17:19:03,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 17:19:03,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:03,481 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:03,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:03,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:03,693 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:03,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:03,694 INFO L85 PathProgramCache]: Analyzing trace with hash -721090780, now seen corresponding path program 1 times [2022-11-25 17:19:03,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:03,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194102439] [2022-11-25 17:19:03,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:03,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:03,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:03,696 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:03,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-25 17:19:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:03,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:19:03,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:19:03,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:19:04,175 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:19:04,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:04,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194102439] [2022-11-25 17:19:04,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194102439] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:19:04,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:19:04,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-25 17:19:04,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729739841] [2022-11-25 17:19:04,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:19:04,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:19:04,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:04,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:19:04,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:19:04,178 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:19:04,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:04,758 INFO L93 Difference]: Finished difference Result 241 states and 292 transitions. [2022-11-25 17:19:04,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:19:04,759 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-25 17:19:04,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:04,761 INFO L225 Difference]: With dead ends: 241 [2022-11-25 17:19:04,761 INFO L226 Difference]: Without dead ends: 185 [2022-11-25 17:19:04,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:19:04,762 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 148 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:04,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 278 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:19:04,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-25 17:19:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 101. [2022-11-25 17:19:04,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 93 states have internal predecessors, (105), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:04,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2022-11-25 17:19:04,783 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 38 [2022-11-25 17:19:04,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:04,783 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2022-11-25 17:19:04,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:19:04,784 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2022-11-25 17:19:04,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 17:19:04,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:04,785 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:04,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:04,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:04,997 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:04,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:04,997 INFO L85 PathProgramCache]: Analyzing trace with hash 729524150, now seen corresponding path program 2 times [2022-11-25 17:19:04,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:04,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383523021] [2022-11-25 17:19:04,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:19:04,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:04,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:04,999 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:05,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-25 17:19:05,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:19:05,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:19:05,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 17:19:05,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:05,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:19:05,503 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:05,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:05,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383523021] [2022-11-25 17:19:05,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383523021] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:19:05,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:19:05,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2022-11-25 17:19:05,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10512103] [2022-11-25 17:19:05,504 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:19:05,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 17:19:05,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:05,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 17:19:05,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:19:05,506 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand has 19 states, 19 states have (on average 4.0) internal successors, (76), 17 states have internal predecessors, (76), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:06,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:06,372 INFO L93 Difference]: Finished difference Result 232 states and 272 transitions. [2022-11-25 17:19:06,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 17:19:06,373 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.0) internal successors, (76), 17 states have internal predecessors, (76), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-11-25 17:19:06,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:06,375 INFO L225 Difference]: With dead ends: 232 [2022-11-25 17:19:06,375 INFO L226 Difference]: Without dead ends: 176 [2022-11-25 17:19:06,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=383, Invalid=949, Unknown=0, NotChecked=0, Total=1332 [2022-11-25 17:19:06,377 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 223 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:06,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 858 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:19:06,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-25 17:19:06,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 139. [2022-11-25 17:19:06,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 126 states have (on average 1.1904761904761905) internal successors, (150), 131 states have internal predecessors, (150), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:06,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 158 transitions. [2022-11-25 17:19:06,405 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 158 transitions. Word has length 46 [2022-11-25 17:19:06,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:06,406 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 158 transitions. [2022-11-25 17:19:06,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.0) internal successors, (76), 17 states have internal predecessors, (76), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:06,406 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 158 transitions. [2022-11-25 17:19:06,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 17:19:06,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:06,408 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:06,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:06,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:06,620 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:06,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:06,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1529776548, now seen corresponding path program 2 times [2022-11-25 17:19:06,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:06,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583160049] [2022-11-25 17:19:06,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:19:06,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:06,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:06,622 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:06,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-25 17:19:06,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 17:19:06,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:19:06,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:19:06,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-25 17:19:06,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:19:06,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:06,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583160049] [2022-11-25 17:19:06,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583160049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:19:06,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:19:06,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:19:06,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430790626] [2022-11-25 17:19:06,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:19:06,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:19:06,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:06,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:19:06,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:19:06,678 INFO L87 Difference]: Start difference. First operand 139 states and 158 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:19:06,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:06,716 INFO L93 Difference]: Finished difference Result 145 states and 165 transitions. [2022-11-25 17:19:06,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:19:06,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 58 [2022-11-25 17:19:06,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:06,719 INFO L225 Difference]: With dead ends: 145 [2022-11-25 17:19:06,719 INFO L226 Difference]: Without dead ends: 144 [2022-11-25 17:19:06,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:19:06,720 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 2 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:06,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 122 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:19:06,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-25 17:19:06,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2022-11-25 17:19:06,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 126 states have (on average 1.1825396825396826) internal successors, (149), 130 states have internal predecessors, (149), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:06,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 157 transitions. [2022-11-25 17:19:06,740 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 157 transitions. Word has length 58 [2022-11-25 17:19:06,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:06,740 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 157 transitions. [2022-11-25 17:19:06,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:19:06,740 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 157 transitions. [2022-11-25 17:19:06,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 17:19:06,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:06,742 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:06,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:06,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:06,953 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:06,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:06,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1529844074, now seen corresponding path program 1 times [2022-11-25 17:19:06,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:06,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802754987] [2022-11-25 17:19:06,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:06,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:06,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:06,955 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:06,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-25 17:19:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:07,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:19:07,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:19:07,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:19:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:19:08,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:08,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802754987] [2022-11-25 17:19:08,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802754987] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:19:08,061 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:19:08,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-11-25 17:19:08,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427799813] [2022-11-25 17:19:08,062 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:19:08,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 17:19:08,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:08,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 17:19:08,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-11-25 17:19:08,063 INFO L87 Difference]: Start difference. First operand 138 states and 157 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:19:10,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:10,345 INFO L93 Difference]: Finished difference Result 382 states and 469 transitions. [2022-11-25 17:19:10,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 17:19:10,346 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 58 [2022-11-25 17:19:10,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:10,348 INFO L225 Difference]: With dead ends: 382 [2022-11-25 17:19:10,348 INFO L226 Difference]: Without dead ends: 327 [2022-11-25 17:19:10,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=343, Invalid=649, Unknown=0, NotChecked=0, Total=992 [2022-11-25 17:19:10,349 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 326 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:10,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 750 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 17:19:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-25 17:19:10,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 140. [2022-11-25 17:19:10,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 128 states have (on average 1.125) internal successors, (144), 132 states have internal predecessors, (144), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:10,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 152 transitions. [2022-11-25 17:19:10,397 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 152 transitions. Word has length 58 [2022-11-25 17:19:10,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:10,397 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 152 transitions. [2022-11-25 17:19:10,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:19:10,398 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 152 transitions. [2022-11-25 17:19:10,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 17:19:10,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:10,402 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:10,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:10,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:10,613 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:10,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1277203274, now seen corresponding path program 3 times [2022-11-25 17:19:10,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:10,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710792087] [2022-11-25 17:19:10,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:19:10,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:10,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:10,616 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:10,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-25 17:19:10,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2022-11-25 17:19:10,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:19:10,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 17:19:10,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:11,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:19:12,173 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:12,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:12,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710792087] [2022-11-25 17:19:12,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710792087] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:19:12,174 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:19:12,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2022-11-25 17:19:12,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2251312] [2022-11-25 17:19:12,174 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:19:12,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-25 17:19:12,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:12,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-25 17:19:12,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2022-11-25 17:19:12,176 INFO L87 Difference]: Start difference. First operand 140 states and 152 transitions. Second operand has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:20,598 INFO L93 Difference]: Finished difference Result 485 states and 585 transitions. [2022-11-25 17:19:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-11-25 17:19:20,599 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-11-25 17:19:20,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:20,601 INFO L225 Difference]: With dead ends: 485 [2022-11-25 17:19:20,601 INFO L226 Difference]: Without dead ends: 430 [2022-11-25 17:19:20,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2296 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=2711, Invalid=7189, Unknown=0, NotChecked=0, Total=9900 [2022-11-25 17:19:20,606 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 894 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:20,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 2811 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 17:19:20,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-11-25 17:19:20,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 218. [2022-11-25 17:19:20,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 206 states have (on average 1.1553398058252426) internal successors, (238), 210 states have internal predecessors, (238), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:20,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 246 transitions. [2022-11-25 17:19:20,655 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 246 transitions. Word has length 86 [2022-11-25 17:19:20,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:20,655 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 246 transitions. [2022-11-25 17:19:20,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:19:20,656 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 246 transitions. [2022-11-25 17:19:20,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 17:19:20,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:20,657 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:20,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:20,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:20,869 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:20,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:20,869 INFO L85 PathProgramCache]: Analyzing trace with hash 991155818, now seen corresponding path program 2 times [2022-11-25 17:19:20,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:20,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203079985] [2022-11-25 17:19:20,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:19:20,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:20,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:20,871 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:20,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-25 17:19:20,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:19:20,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:19:20,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 17:19:20,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:21,719 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:19:21,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:19:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:19:23,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:23,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203079985] [2022-11-25 17:19:23,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203079985] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:19:23,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:19:23,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2022-11-25 17:19:23,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533289526] [2022-11-25 17:19:23,932 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:19:23,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-25 17:19:23,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:23,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-25 17:19:23,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 17:19:23,934 INFO L87 Difference]: Start difference. First operand 218 states and 246 transitions. Second operand has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:19:33,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:33,091 INFO L93 Difference]: Finished difference Result 676 states and 837 transitions. [2022-11-25 17:19:33,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-25 17:19:33,093 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 98 [2022-11-25 17:19:33,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:33,096 INFO L225 Difference]: With dead ends: 676 [2022-11-25 17:19:33,096 INFO L226 Difference]: Without dead ends: 621 [2022-11-25 17:19:33,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1327, Invalid=2705, Unknown=0, NotChecked=0, Total=4032 [2022-11-25 17:19:33,098 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 906 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 2584 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 2656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:33,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 2315 Invalid, 2656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2584 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 17:19:33,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-11-25 17:19:33,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 220. [2022-11-25 17:19:33,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 208 states have (on average 1.0817307692307692) internal successors, (225), 212 states have internal predecessors, (225), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:19:33,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 233 transitions. [2022-11-25 17:19:33,160 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 233 transitions. Word has length 98 [2022-11-25 17:19:33,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:33,160 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 233 transitions. [2022-11-25 17:19:33,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:19:33,161 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 233 transitions. [2022-11-25 17:19:33,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-25 17:19:33,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:33,168 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:33,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:33,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:33,379 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:19:33,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:33,380 INFO L85 PathProgramCache]: Analyzing trace with hash 634551030, now seen corresponding path program 4 times [2022-11-25 17:19:33,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:19:33,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320012845] [2022-11-25 17:19:33,380 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 17:19:33,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:19:33,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:19:33,381 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:19:33,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-25 17:19:33,461 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 17:19:33,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:19:33,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-25 17:19:33,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:34,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:19:37,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:19:37,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:19:37,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320012845] [2022-11-25 17:19:37,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320012845] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:19:37,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:19:37,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 53 [2022-11-25 17:19:37,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056048367] [2022-11-25 17:19:37,584 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:19:37,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-25 17:19:37,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:19:37,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-25 17:19:37,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=2131, Unknown=0, NotChecked=0, Total=2862 [2022-11-25 17:19:37,588 INFO L87 Difference]: Start difference. First operand 220 states and 233 transitions. Second operand has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:20:25,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:25,172 INFO L93 Difference]: Finished difference Result 456 states and 523 transitions. [2022-11-25 17:20:25,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-25 17:20:25,174 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 136 [2022-11-25 17:20:25,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:25,176 INFO L225 Difference]: With dead ends: 456 [2022-11-25 17:20:25,176 INFO L226 Difference]: Without dead ends: 455 [2022-11-25 17:20:25,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2112 ImplicationChecksByTransitivity, 45.1s TimeCoverageRelationStatistics Valid=4535, Invalid=12235, Unknown=0, NotChecked=0, Total=16770 [2022-11-25 17:20:25,181 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 771 mSDsluCounter, 3966 mSDsCounter, 0 mSdLazyCounter, 3996 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 4145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 3996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:25,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 4067 Invalid, 4145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 3996 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 17:20:25,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-11-25 17:20:25,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 338. [2022-11-25 17:20:25,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 326 states have (on average 1.1901840490797546) internal successors, (388), 330 states have internal predecessors, (388), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:20:25,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 396 transitions. [2022-11-25 17:20:25,279 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 396 transitions. Word has length 136 [2022-11-25 17:20:25,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:25,280 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 396 transitions. [2022-11-25 17:20:25,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:20:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 396 transitions. [2022-11-25 17:20:25,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-25 17:20:25,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:25,282 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:25,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:25,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:25,483 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:20:25,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:25,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1706633891, now seen corresponding path program 1 times [2022-11-25 17:20:25,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:25,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736193664] [2022-11-25 17:20:25,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:25,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:25,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:25,485 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:20:25,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-25 17:20:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:25,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:20:25,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2022-11-25 17:20:25,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:20:25,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:20:25,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736193664] [2022-11-25 17:20:25,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736193664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:25,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:25,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:20:25,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392172094] [2022-11-25 17:20:25,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:25,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:20:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:20:25,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:20:25,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:20:25,638 INFO L87 Difference]: Start difference. First operand 338 states and 396 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:20:26,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:26,105 INFO L93 Difference]: Finished difference Result 350 states and 411 transitions. [2022-11-25 17:20:26,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:20:26,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 149 [2022-11-25 17:20:26,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:26,108 INFO L225 Difference]: With dead ends: 350 [2022-11-25 17:20:26,108 INFO L226 Difference]: Without dead ends: 349 [2022-11-25 17:20:26,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:20:26,109 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 52 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:26,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 130 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:20:26,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-11-25 17:20:26,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 340. [2022-11-25 17:20:26,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 328 states have (on average 1.1920731707317074) internal successors, (391), 332 states have internal predecessors, (391), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:20:26,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 399 transitions. [2022-11-25 17:20:26,200 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 399 transitions. Word has length 149 [2022-11-25 17:20:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:26,207 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 399 transitions. [2022-11-25 17:20:26,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:20:26,208 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 399 transitions. [2022-11-25 17:20:26,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-25 17:20:26,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:26,210 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 23, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:26,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-11-25 17:20:26,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:26,422 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:20:26,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:26,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1650863767, now seen corresponding path program 1 times [2022-11-25 17:20:26,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:26,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411171700] [2022-11-25 17:20:26,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:26,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:26,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:26,425 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:20:26,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-25 17:20:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:26,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:20:26,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:27,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1513 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2022-11-25 17:20:27,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:20:27,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:20:27,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411171700] [2022-11-25 17:20:27,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411171700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:27,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:27,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:20:27,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749831873] [2022-11-25 17:20:27,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:27,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:20:27,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:20:27,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:20:27,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:20:27,508 INFO L87 Difference]: Start difference. First operand 340 states and 399 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:20:31,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:31,451 INFO L93 Difference]: Finished difference Result 355 states and 418 transitions. [2022-11-25 17:20:31,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:20:31,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 152 [2022-11-25 17:20:31,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:31,454 INFO L225 Difference]: With dead ends: 355 [2022-11-25 17:20:31,454 INFO L226 Difference]: Without dead ends: 354 [2022-11-25 17:20:31,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:20:31,455 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 56 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:31,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 195 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 17:20:31,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-25 17:20:31,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 219. [2022-11-25 17:20:31,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 208 states have (on average 1.0721153846153846) internal successors, (223), 211 states have internal predecessors, (223), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:20:31,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 231 transitions. [2022-11-25 17:20:31,500 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 231 transitions. Word has length 152 [2022-11-25 17:20:31,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:31,500 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 231 transitions. [2022-11-25 17:20:31,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:20:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 231 transitions. [2022-11-25 17:20:31,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-25 17:20:31,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:31,503 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:31,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:31,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:31,715 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:20:31,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:31,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1043871996, now seen corresponding path program 1 times [2022-11-25 17:20:31,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:31,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213849423] [2022-11-25 17:20:31,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:31,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:31,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:31,718 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:20:31,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-25 17:20:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:31,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:20:31,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:31,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-11-25 17:20:31,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:20:31,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-11-25 17:20:31,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:20:31,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213849423] [2022-11-25 17:20:31,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213849423] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:20:31,945 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:20:31,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2022-11-25 17:20:31,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063529331] [2022-11-25 17:20:31,946 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:20:31,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:20:31,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:20:31,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:20:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:20:31,947 INFO L87 Difference]: Start difference. First operand 219 states and 231 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:20:32,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:32,042 INFO L93 Difference]: Finished difference Result 246 states and 259 transitions. [2022-11-25 17:20:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:20:32,043 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 163 [2022-11-25 17:20:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:32,044 INFO L225 Difference]: With dead ends: 246 [2022-11-25 17:20:32,045 INFO L226 Difference]: Without dead ends: 225 [2022-11-25 17:20:32,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:20:32,046 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 27 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:32,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 254 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:20:32,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-25 17:20:32,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 219. [2022-11-25 17:20:32,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 208 states have (on average 1.0673076923076923) internal successors, (222), 211 states have internal predecessors, (222), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:20:32,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 230 transitions. [2022-11-25 17:20:32,089 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 230 transitions. Word has length 163 [2022-11-25 17:20:32,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:32,090 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 230 transitions. [2022-11-25 17:20:32,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:20:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 230 transitions. [2022-11-25 17:20:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-25 17:20:32,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:32,092 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:32,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:32,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:32,304 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:20:32,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:32,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1928351454, now seen corresponding path program 1 times [2022-11-25 17:20:32,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:32,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903275183] [2022-11-25 17:20:32,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:32,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:32,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:32,307 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:20:32,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-25 17:20:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:32,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:20:32,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-11-25 17:20:32,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:20:32,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:20:32,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903275183] [2022-11-25 17:20:32,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903275183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:32,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:32,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:20:32,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937560262] [2022-11-25 17:20:32,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:32,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:20:32,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:20:32,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:20:32,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:20:32,455 INFO L87 Difference]: Start difference. First operand 219 states and 230 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:20:32,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:32,545 INFO L93 Difference]: Finished difference Result 272 states and 285 transitions. [2022-11-25 17:20:32,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:20:32,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 165 [2022-11-25 17:20:32,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:32,547 INFO L225 Difference]: With dead ends: 272 [2022-11-25 17:20:32,547 INFO L226 Difference]: Without dead ends: 250 [2022-11-25 17:20:32,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:20:32,548 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 25 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:32,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 283 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:20:32,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-25 17:20:32,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 225. [2022-11-25 17:20:32,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 213 states have (on average 1.0657276995305165) internal successors, (227), 216 states have internal predecessors, (227), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 17:20:32,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 237 transitions. [2022-11-25 17:20:32,593 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 237 transitions. Word has length 165 [2022-11-25 17:20:32,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:32,593 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 237 transitions. [2022-11-25 17:20:32,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:20:32,594 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 237 transitions. [2022-11-25 17:20:32,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-25 17:20:32,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:32,596 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:32,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:32,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:32,809 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:20:32,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:32,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1973588832, now seen corresponding path program 1 times [2022-11-25 17:20:32,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:32,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095287492] [2022-11-25 17:20:32,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:32,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:32,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:32,811 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:20:32,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-25 17:20:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:32,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:20:32,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:32,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-11-25 17:20:32,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:20:32,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:20:32,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095287492] [2022-11-25 17:20:32,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095287492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:32,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:32,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:20:32,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639683544] [2022-11-25 17:20:32,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:32,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:20:32,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:20:32,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:20:32,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:20:32,975 INFO L87 Difference]: Start difference. First operand 225 states and 237 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:20:33,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:33,103 INFO L93 Difference]: Finished difference Result 251 states and 263 transitions. [2022-11-25 17:20:33,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:20:33,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 165 [2022-11-25 17:20:33,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:33,105 INFO L225 Difference]: With dead ends: 251 [2022-11-25 17:20:33,105 INFO L226 Difference]: Without dead ends: 225 [2022-11-25 17:20:33,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:20:33,106 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 5 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:33,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 332 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:20:33,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-25 17:20:33,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 222. [2022-11-25 17:20:33,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 210 states have (on average 1.0666666666666667) internal successors, (224), 214 states have internal predecessors, (224), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-25 17:20:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 233 transitions. [2022-11-25 17:20:33,156 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 233 transitions. Word has length 165 [2022-11-25 17:20:33,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:33,156 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 233 transitions. [2022-11-25 17:20:33,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:20:33,157 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 233 transitions. [2022-11-25 17:20:33,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-25 17:20:33,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:33,159 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:33,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:33,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:33,371 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:20:33,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:33,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1102920081, now seen corresponding path program 1 times [2022-11-25 17:20:33,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:33,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642853014] [2022-11-25 17:20:33,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:33,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:33,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:33,374 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:20:33,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-25 17:20:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:33,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:20:33,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:33,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1402 trivial. 0 not checked. [2022-11-25 17:20:33,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:20:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1402 trivial. 0 not checked. [2022-11-25 17:20:33,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:20:33,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642853014] [2022-11-25 17:20:33,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642853014] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:20:33,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:20:33,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2022-11-25 17:20:33,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094322723] [2022-11-25 17:20:33,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:20:33,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:20:33,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:20:33,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:20:33,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:20:33,647 INFO L87 Difference]: Start difference. First operand 222 states and 233 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:20:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:33,796 INFO L93 Difference]: Finished difference Result 253 states and 266 transitions. [2022-11-25 17:20:33,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:20:33,797 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 169 [2022-11-25 17:20:33,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:33,798 INFO L225 Difference]: With dead ends: 253 [2022-11-25 17:20:33,798 INFO L226 Difference]: Without dead ends: 222 [2022-11-25 17:20:33,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:20:33,799 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 7 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:33,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 404 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:20:33,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-25 17:20:33,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 219. [2022-11-25 17:20:33,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 208 states have (on average 1.0576923076923077) internal successors, (220), 211 states have internal predecessors, (220), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:20:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 228 transitions. [2022-11-25 17:20:33,850 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 228 transitions. Word has length 169 [2022-11-25 17:20:33,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:33,851 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 228 transitions. [2022-11-25 17:20:33,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:20:33,851 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 228 transitions. [2022-11-25 17:20:33,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-25 17:20:33,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:33,853 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:33,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:34,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:34,065 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:20:34,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:34,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2085518786, now seen corresponding path program 2 times [2022-11-25 17:20:34,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:34,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877850793] [2022-11-25 17:20:34,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:20:34,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:34,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:34,068 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:20:34,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-25 17:20:34,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 17:20:34,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:20:34,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:20:34,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:34,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2022-11-25 17:20:34,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:20:34,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:20:34,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877850793] [2022-11-25 17:20:34,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877850793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:34,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:34,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:20:34,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729799913] [2022-11-25 17:20:34,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:34,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:20:34,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:20:34,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:20:34,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:20:34,181 INFO L87 Difference]: Start difference. First operand 219 states and 228 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:20:34,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:34,331 INFO L93 Difference]: Finished difference Result 219 states and 228 transitions. [2022-11-25 17:20:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:20:34,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 173 [2022-11-25 17:20:34,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:34,333 INFO L225 Difference]: With dead ends: 219 [2022-11-25 17:20:34,333 INFO L226 Difference]: Without dead ends: 217 [2022-11-25 17:20:34,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:20:34,334 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 2 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:34,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 107 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:20:34,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-11-25 17:20:34,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2022-11-25 17:20:34,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 208 states have (on average 1.0480769230769231) internal successors, (218), 209 states have internal predecessors, (218), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 17:20:34,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 226 transitions. [2022-11-25 17:20:34,377 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 226 transitions. Word has length 173 [2022-11-25 17:20:34,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:34,378 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 226 transitions. [2022-11-25 17:20:34,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:20:34,378 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 226 transitions. [2022-11-25 17:20:34,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-25 17:20:34,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:34,379 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:34,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:34,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:34,590 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:20:34,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:34,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1306599208, now seen corresponding path program 1 times [2022-11-25 17:20:34,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:34,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856466077] [2022-11-25 17:20:34,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:34,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:34,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:34,593 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:20:34,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-25 17:20:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:34,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 17:20:34,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:34,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2022-11-25 17:20:34,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:20:34,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:20:34,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856466077] [2022-11-25 17:20:34,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856466077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:34,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:34,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:20:34,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868075768] [2022-11-25 17:20:34,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:34,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:20:34,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:20:34,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:20:34,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:20:34,853 INFO L87 Difference]: Start difference. First operand 217 states and 226 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:20:35,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:35,046 INFO L93 Difference]: Finished difference Result 285 states and 298 transitions. [2022-11-25 17:20:35,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:20:35,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 176 [2022-11-25 17:20:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:35,047 INFO L225 Difference]: With dead ends: 285 [2022-11-25 17:20:35,048 INFO L226 Difference]: Without dead ends: 268 [2022-11-25 17:20:35,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:20:35,049 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 81 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:35,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 444 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:20:35,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-11-25 17:20:35,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2022-11-25 17:20:35,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 217 states have (on average 1.0506912442396312) internal successors, (228), 218 states have internal predecessors, (228), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-25 17:20:35,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 241 transitions. [2022-11-25 17:20:35,104 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 241 transitions. Word has length 176 [2022-11-25 17:20:35,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:35,104 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 241 transitions. [2022-11-25 17:20:35,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:20:35,105 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 241 transitions. [2022-11-25 17:20:35,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-25 17:20:35,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:35,106 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:35,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:35,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:35,315 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:20:35,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:35,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1699626218, now seen corresponding path program 1 times [2022-11-25 17:20:35,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:35,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595958871] [2022-11-25 17:20:35,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:35,316 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:35,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:35,317 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:20:35,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-25 17:20:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:35,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 17:20:35,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:35,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2022-11-25 17:20:35,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:20:35,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:20:35,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595958871] [2022-11-25 17:20:35,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595958871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:35,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:35,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 17:20:35,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562300277] [2022-11-25 17:20:35,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:35,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:20:35,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:20:35,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:20:35,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:20:35,668 INFO L87 Difference]: Start difference. First operand 228 states and 241 transitions. Second operand has 12 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:20:36,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:36,111 INFO L93 Difference]: Finished difference Result 268 states and 281 transitions. [2022-11-25 17:20:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:20:36,114 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 176 [2022-11-25 17:20:36,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:36,115 INFO L225 Difference]: With dead ends: 268 [2022-11-25 17:20:36,116 INFO L226 Difference]: Without dead ends: 267 [2022-11-25 17:20:36,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:20:36,117 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 77 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:36,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 633 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:20:36,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-11-25 17:20:36,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 237. [2022-11-25 17:20:36,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 226 states have (on average 1.0486725663716814) internal successors, (237), 227 states have internal predecessors, (237), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-25 17:20:36,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 250 transitions. [2022-11-25 17:20:36,161 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 250 transitions. Word has length 176 [2022-11-25 17:20:36,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:36,162 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 250 transitions. [2022-11-25 17:20:36,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:20:36,162 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 250 transitions. [2022-11-25 17:20:36,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-25 17:20:36,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:36,163 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:36,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-11-25 17:20:36,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:36,376 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 17:20:36,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:36,376 INFO L85 PathProgramCache]: Analyzing trace with hash -66785534, now seen corresponding path program 1 times [2022-11-25 17:20:36,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:36,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115245426] [2022-11-25 17:20:36,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:36,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:36,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:36,378 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:20:36,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-25 17:20:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:36,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 17:20:36,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-11-25 17:20:36,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:20:36,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2022-11-25 17:20:36,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:20:36,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115245426] [2022-11-25 17:20:36,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2115245426] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 17:20:36,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:20:36,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-11-25 17:20:36,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14345608] [2022-11-25 17:20:36,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:36,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:20:36,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:20:36,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:20:36,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:20:36,700 INFO L87 Difference]: Start difference. First operand 237 states and 250 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:20:37,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:37,074 INFO L93 Difference]: Finished difference Result 237 states and 250 transitions. [2022-11-25 17:20:37,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:20:37,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 178 [2022-11-25 17:20:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:37,075 INFO L225 Difference]: With dead ends: 237 [2022-11-25 17:20:37,076 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:20:37,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:20:37,077 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 9 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:37,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 187 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:20:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:20:37,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:20:37,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:20:37,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2022-11-25 17:20:37,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:37,078 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:20:37,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:20:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:20:37,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:20:37,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-25 17:20:37,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-25 17:20:37,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-25 17:20:37,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-25 17:20:37,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-25 17:20:37,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-25 17:20:37,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-25 17:20:37,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-25 17:20:37,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-25 17:20:37,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-25 17:20:37,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-25 17:20:37,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-25 17:20:37,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-25 17:20:37,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-25 17:20:37,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-25 17:20:37,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-25 17:20:37,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:37,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4552b416-168a-4f76-8213-0a1c9208dccd/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:20:37,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.