./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ --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 f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- 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-dbf71c6-m [2022-10-17 10:42:53,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:42:53,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:42:53,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:42:53,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:42:53,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:42:53,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:42:53,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:42:53,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:42:53,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:42:53,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:42:53,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:42:53,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:42:53,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:42:53,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:42:53,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:42:53,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:42:53,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:42:53,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:42:53,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:42:53,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:42:53,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:42:53,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:42:53,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:42:53,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:42:53,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:42:53,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:42:53,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:42:53,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:42:53,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:42:53,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:42:53,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:42:53,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:42:53,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:42:53,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:42:53,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:42:53,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:42:53,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:42:53,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:42:53,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:42:53,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:42:53,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-17 10:42:53,692 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:42:53,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:42:53,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:42:53,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:42:53,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:42:53,695 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:42:53,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:42:53,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:42:53,697 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:42:53,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:42:53,699 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:42:53,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:42:53,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:42:53,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:42:53,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:42:53,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:42:53,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:42:53,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:42:53,701 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 10:42:53,701 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:42:53,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:42:53,702 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:42:53,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:42:53,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:42:53,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:42:53,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:42:53,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:42:53,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:42:53,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:42:53,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:42:53,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:42:53,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:42:53,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:42:53,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2022-10-17 10:42:54,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:42:54,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:42:54,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:42:54,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:42:54,065 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:42:54,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2022-10-17 10:42:54,146 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/data/93e601163/fdcf8ba4c2b24835bf0f2b6022f20c50/FLAGd79fc9004 [2022-10-17 10:42:54,812 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:42:54,816 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2022-10-17 10:42:54,833 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/data/93e601163/fdcf8ba4c2b24835bf0f2b6022f20c50/FLAGd79fc9004 [2022-10-17 10:42:55,126 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/data/93e601163/fdcf8ba4c2b24835bf0f2b6022f20c50 [2022-10-17 10:42:55,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:42:55,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:42:55,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:42:55,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:42:55,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:42:55,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae4c8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55, skipping insertion in model container [2022-10-17 10:42:55,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:42:55,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:42:55,414 WARN L230 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_7cb8fc95-b4ea-4d8a-a275-3870983633ae/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2022-10-17 10:42:55,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:42:55,507 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:42:55,520 WARN L230 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_7cb8fc95-b4ea-4d8a-a275-3870983633ae/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2022-10-17 10:42:55,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:42:55,584 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:42:55,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55 WrapperNode [2022-10-17 10:42:55,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:42:55,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:42:55,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:42:55,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:42:55,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,643 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 192 [2022-10-17 10:42:55,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:42:55,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:42:55,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:42:55,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:42:55,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,712 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:42:55,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:42:55,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:42:55,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:42:55,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (1/1) ... [2022-10-17 10:42:55,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:42:55,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:55,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:55,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:42:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:42:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:42:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-10-17 10:42:55,837 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-10-17 10:42:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:42:55,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:42:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 10:42:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 10:42:55,930 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:42:55,933 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:42:56,737 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:42:56,748 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:42:56,755 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:42:56,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:56 BoogieIcfgContainer [2022-10-17 10:42:56,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:42:56,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:42:56,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:42:56,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:42:56,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:42:55" (1/3) ... [2022-10-17 10:42:56,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3039cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:42:56, skipping insertion in model container [2022-10-17 10:42:56,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:55" (2/3) ... [2022-10-17 10:42:56,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3039cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:42:56, skipping insertion in model container [2022-10-17 10:42:56,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:56" (3/3) ... [2022-10-17 10:42:56,814 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2022-10-17 10:42:56,838 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:42:56,838 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-10-17 10:42:56,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:42:56,960 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=FINITE_AUTOMATA, 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;@5fe9bf8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:42:56,961 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-10-17 10:42:56,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 98 states have (on average 1.7857142857142858) internal successors, (175), 121 states have internal predecessors, (175), 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) [2022-10-17 10:42:56,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 10:42:56,976 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:56,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:56,978 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:42:56,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:56,984 INFO L85 PathProgramCache]: Analyzing trace with hash -650612023, now seen corresponding path program 1 times [2022-10-17 10:42:56,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:56,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9479184] [2022-10-17 10:42:56,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:56,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:57,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:57,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:57,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9479184] [2022-10-17 10:42:57,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9479184] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:57,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:57,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:42:57,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463794431] [2022-10-17 10:42:57,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:57,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:42:57,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:57,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:42:57,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:42:57,230 INFO L87 Difference]: Start difference. First operand has 128 states, 98 states have (on average 1.7857142857142858) internal successors, (175), 121 states have internal predecessors, (175), 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, 2 states have (on average 4.0) 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) [2022-10-17 10:42:57,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:57,280 INFO L93 Difference]: Finished difference Result 251 states and 371 transitions. [2022-10-17 10:42:57,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:42:57,282 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) 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 [2022-10-17 10:42:57,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:57,293 INFO L225 Difference]: With dead ends: 251 [2022-10-17 10:42:57,293 INFO L226 Difference]: Without dead ends: 105 [2022-10-17 10:42:57,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:42:57,303 INFO L413 NwaCegarLoop]: 168 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, 168 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 [2022-10-17 10:42:57,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:42:57,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-10-17 10:42:57,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2022-10-17 10:42:57,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 80 states have (on average 1.5875) internal successors, (127), 99 states have internal predecessors, (127), 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) [2022-10-17 10:42:57,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 135 transitions. [2022-10-17 10:42:57,359 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 135 transitions. Word has length 9 [2022-10-17 10:42:57,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:57,360 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 135 transitions. [2022-10-17 10:42:57,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) 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) [2022-10-17 10:42:57,361 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 135 transitions. [2022-10-17 10:42:57,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 10:42:57,362 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:57,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:57,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:42:57,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:42:57,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:57,364 INFO L85 PathProgramCache]: Analyzing trace with hash -651553371, now seen corresponding path program 1 times [2022-10-17 10:42:57,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:57,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214813956] [2022-10-17 10:42:57,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:57,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:57,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:57,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:57,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214813956] [2022-10-17 10:42:57,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214813956] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:57,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:57,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:42:57,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299487482] [2022-10-17 10:42:57,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:57,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:42:57,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:57,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:42:57,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:42:57,545 INFO L87 Difference]: Start difference. First operand 105 states and 135 transitions. 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) [2022-10-17 10:42:57,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:57,730 INFO L93 Difference]: Finished difference Result 269 states and 363 transitions. [2022-10-17 10:42:57,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:42:57,731 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 [2022-10-17 10:42:57,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:57,735 INFO L225 Difference]: With dead ends: 269 [2022-10-17 10:42:57,738 INFO L226 Difference]: Without dead ends: 167 [2022-10-17 10:42:57,740 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 [2022-10-17 10:42:57,745 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 106 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:42:57,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 349 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:42:57,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-10-17 10:42:57,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 154. [2022-10-17 10:42:57,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 128 states have (on average 1.578125) internal successors, (202), 147 states have internal predecessors, (202), 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) [2022-10-17 10:42:57,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 210 transitions. [2022-10-17 10:42:57,790 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 210 transitions. Word has length 9 [2022-10-17 10:42:57,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:57,793 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 210 transitions. [2022-10-17 10:42:57,794 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) [2022-10-17 10:42:57,797 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 210 transitions. [2022-10-17 10:42:57,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 10:42:57,799 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:57,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:57,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:42:57,801 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:42:57,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:57,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1699191166, now seen corresponding path program 1 times [2022-10-17 10:42:57,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:57,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931109581] [2022-10-17 10:42:57,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:57,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:58,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:58,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:58,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931109581] [2022-10-17 10:42:58,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931109581] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:58,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:58,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:42:58,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324559334] [2022-10-17 10:42:58,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:58,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:42:58,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:58,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:42:58,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:42:58,019 INFO L87 Difference]: Start difference. First operand 154 states and 210 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-10-17 10:42:58,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:58,227 INFO L93 Difference]: Finished difference Result 189 states and 251 transitions. [2022-10-17 10:42:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:42:58,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 13 [2022-10-17 10:42:58,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:58,234 INFO L225 Difference]: With dead ends: 189 [2022-10-17 10:42:58,234 INFO L226 Difference]: Without dead ends: 186 [2022-10-17 10:42:58,236 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 [2022-10-17 10:42:58,246 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 161 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:42:58,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 468 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:42:58,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-10-17 10:42:58,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 161. [2022-10-17 10:42:58,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 135 states have (on average 1.5777777777777777) internal successors, (213), 154 states have internal predecessors, (213), 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) [2022-10-17 10:42:58,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 221 transitions. [2022-10-17 10:42:58,304 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 221 transitions. Word has length 13 [2022-10-17 10:42:58,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:58,305 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 221 transitions. [2022-10-17 10:42:58,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-10-17 10:42:58,305 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 221 transitions. [2022-10-17 10:42:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 10:42:58,307 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:58,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:58,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:42:58,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:42:58,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:58,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1135318715, now seen corresponding path program 1 times [2022-10-17 10:42:58,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:58,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297001042] [2022-10-17 10:42:58,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:58,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:58,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:58,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:58,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297001042] [2022-10-17 10:42:58,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297001042] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:58,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:58,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:42:58,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998726656] [2022-10-17 10:42:58,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:58,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:42:58,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:58,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:42:58,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:42:58,477 INFO L87 Difference]: Start difference. First operand 161 states and 221 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) [2022-10-17 10:42:58,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:58,652 INFO L93 Difference]: Finished difference Result 354 states and 486 transitions. [2022-10-17 10:42:58,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:42:58,653 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 [2022-10-17 10:42:58,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:58,656 INFO L225 Difference]: With dead ends: 354 [2022-10-17 10:42:58,657 INFO L226 Difference]: Without dead ends: 196 [2022-10-17 10:42:58,660 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 [2022-10-17 10:42:58,671 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 165 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:42:58,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 459 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:42:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-10-17 10:42:58,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 165. [2022-10-17 10:42:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 139 states have (on average 1.5539568345323742) internal successors, (216), 158 states have internal predecessors, (216), 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) [2022-10-17 10:42:58,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 224 transitions. [2022-10-17 10:42:58,695 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 224 transitions. Word has length 14 [2022-10-17 10:42:58,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:58,696 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 224 transitions. [2022-10-17 10:42:58,696 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) [2022-10-17 10:42:58,696 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 224 transitions. [2022-10-17 10:42:58,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 10:42:58,698 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:58,698 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:58,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:42:58,698 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:42:58,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:58,699 INFO L85 PathProgramCache]: Analyzing trace with hash -783591725, now seen corresponding path program 1 times [2022-10-17 10:42:58,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:58,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760084715] [2022-10-17 10:42:58,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:58,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:58,742 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:42:58,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:58,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760084715] [2022-10-17 10:42:58,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760084715] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:58,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:58,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:42:58,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112475818] [2022-10-17 10:42:58,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:58,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:42:58,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:58,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:42:58,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:42:58,745 INFO L87 Difference]: Start difference. First operand 165 states and 224 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-10-17 10:42:58,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:58,793 INFO L93 Difference]: Finished difference Result 173 states and 234 transitions. [2022-10-17 10:42:58,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:42:58,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 [2022-10-17 10:42:58,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:58,796 INFO L225 Difference]: With dead ends: 173 [2022-10-17 10:42:58,796 INFO L226 Difference]: Without dead ends: 172 [2022-10-17 10:42:58,797 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 [2022-10-17 10:42:58,798 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 5 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:42:58,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 248 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:42:58,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-10-17 10:42:58,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 163. [2022-10-17 10:42:58,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 138 states have (on average 1.5434782608695652) internal successors, (213), 156 states have internal predecessors, (213), 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) [2022-10-17 10:42:58,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 221 transitions. [2022-10-17 10:42:58,813 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 221 transitions. Word has length 15 [2022-10-17 10:42:58,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:58,818 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 221 transitions. [2022-10-17 10:42:58,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-10-17 10:42:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 221 transitions. [2022-10-17 10:42:58,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 10:42:58,821 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:58,822 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:58,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:42:58,822 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:42:58,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:58,829 INFO L85 PathProgramCache]: Analyzing trace with hash -783589465, now seen corresponding path program 1 times [2022-10-17 10:42:58,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:58,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267133959] [2022-10-17 10:42:58,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:58,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:58,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:58,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267133959] [2022-10-17 10:42:58,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267133959] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:42:58,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741320053] [2022-10-17 10:42:58,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:58,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:42:58,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:58,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:42:58,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:42:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:59,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:42:59,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:42:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:59,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:42:59,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741320053] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:59,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:42:59,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-10-17 10:42:59,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324017467] [2022-10-17 10:42:59,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:59,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:42:59,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:59,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:42:59,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:42:59,150 INFO L87 Difference]: Start difference. First operand 163 states and 221 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) 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) [2022-10-17 10:42:59,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:59,236 INFO L93 Difference]: Finished difference Result 201 states and 276 transitions. [2022-10-17 10:42:59,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:42:59,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) 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 [2022-10-17 10:42:59,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:59,241 INFO L225 Difference]: With dead ends: 201 [2022-10-17 10:42:59,241 INFO L226 Difference]: Without dead ends: 199 [2022-10-17 10:42:59,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:42:59,244 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 26 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:42:59,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 391 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:42:59,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-10-17 10:42:59,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 165. [2022-10-17 10:42:59,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 140 states have (on average 1.5357142857142858) internal successors, (215), 158 states have internal predecessors, (215), 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) [2022-10-17 10:42:59,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 223 transitions. [2022-10-17 10:42:59,262 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 223 transitions. Word has length 15 [2022-10-17 10:42:59,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:59,262 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 223 transitions. [2022-10-17 10:42:59,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) 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) [2022-10-17 10:42:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 223 transitions. [2022-10-17 10:42:59,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 10:42:59,264 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:59,264 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:59,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:42:59,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:42:59,490 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:42:59,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:59,491 INFO L85 PathProgramCache]: Analyzing trace with hash 842807383, now seen corresponding path program 1 times [2022-10-17 10:42:59,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:59,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694461085] [2022-10-17 10:42:59,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:59,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:42:59,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:59,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694461085] [2022-10-17 10:42:59,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694461085] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:59,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:59,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:42:59,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999274214] [2022-10-17 10:42:59,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:59,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:42:59,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:59,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:42:59,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:42:59,541 INFO L87 Difference]: Start difference. First operand 165 states and 223 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) [2022-10-17 10:42:59,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:59,655 INFO L93 Difference]: Finished difference Result 207 states and 285 transitions. [2022-10-17 10:42:59,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:42:59,655 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 [2022-10-17 10:42:59,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:59,657 INFO L225 Difference]: With dead ends: 207 [2022-10-17 10:42:59,658 INFO L226 Difference]: Without dead ends: 204 [2022-10-17 10:42:59,658 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 [2022-10-17 10:42:59,659 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 27 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:42:59,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 370 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:42:59,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-10-17 10:42:59,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 170. [2022-10-17 10:42:59,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 146 states have (on average 1.5273972602739727) internal successors, (223), 163 states have internal predecessors, (223), 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) [2022-10-17 10:42:59,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 231 transitions. [2022-10-17 10:42:59,672 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 231 transitions. Word has length 19 [2022-10-17 10:42:59,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:59,672 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 231 transitions. [2022-10-17 10:42:59,672 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) [2022-10-17 10:42:59,673 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 231 transitions. [2022-10-17 10:42:59,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 10:42:59,674 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:59,674 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:59,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:42:59,675 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:42:59,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:59,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1397629671, now seen corresponding path program 1 times [2022-10-17 10:42:59,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:59,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372204142] [2022-10-17 10:42:59,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:59,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:59,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:42:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:59,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:42:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:59,753 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 10:42:59,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:59,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372204142] [2022-10-17 10:42:59,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372204142] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:42:59,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791998906] [2022-10-17 10:42:59,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:59,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:42:59,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:59,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:42:59,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:42:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:59,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:42:59,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:42:59,851 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 10:42:59,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:42:59,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791998906] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:59,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:42:59,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-17 10:42:59,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954112344] [2022-10-17 10:42:59,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:59,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:42:59,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:59,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:42:59,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:42:59,853 INFO L87 Difference]: Start difference. First operand 170 states and 231 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, (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) [2022-10-17 10:42:59,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:59,994 INFO L93 Difference]: Finished difference Result 252 states and 350 transitions. [2022-10-17 10:42:59,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:42:59,995 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, (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 23 [2022-10-17 10:42:59,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:00,000 INFO L225 Difference]: With dead ends: 252 [2022-10-17 10:43:00,001 INFO L226 Difference]: Without dead ends: 249 [2022-10-17 10:43:00,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:43:00,002 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 188 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:00,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 365 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:43:00,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-10-17 10:43:00,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 207. [2022-10-17 10:43:00,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 182 states have (on average 1.5384615384615385) internal successors, (280), 199 states have internal predecessors, (280), 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) [2022-10-17 10:43:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2022-10-17 10:43:00,019 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 23 [2022-10-17 10:43:00,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:00,019 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2022-10-17 10:43:00,019 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, (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) [2022-10-17 10:43:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2022-10-17 10:43:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 10:43:00,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:00,024 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:43:00,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:00,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:00,238 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:00,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:00,239 INFO L85 PathProgramCache]: Analyzing trace with hash -315199921, now seen corresponding path program 1 times [2022-10-17 10:43:00,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:00,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532180648] [2022-10-17 10:43:00,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:00,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:00,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:00,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:00,354 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 10:43:00,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:00,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532180648] [2022-10-17 10:43:00,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532180648] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:00,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822411194] [2022-10-17 10:43:00,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:00,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:00,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:00,358 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:00,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:43:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:00,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:43:00,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:00,511 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 10:43:00,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:43:00,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822411194] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:43:00,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:43:00,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-17 10:43:00,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931374049] [2022-10-17 10:43:00,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:43:00,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:43:00,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:00,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:43:00,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:43:00,514 INFO L87 Difference]: Start difference. First operand 207 states and 288 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, (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) [2022-10-17 10:43:00,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:00,632 INFO L93 Difference]: Finished difference Result 240 states and 329 transitions. [2022-10-17 10:43:00,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:43:00,632 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, (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 25 [2022-10-17 10:43:00,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:00,634 INFO L225 Difference]: With dead ends: 240 [2022-10-17 10:43:00,635 INFO L226 Difference]: Without dead ends: 237 [2022-10-17 10:43:00,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:43:00,636 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 168 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:00,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 375 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:43:00,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-10-17 10:43:00,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 199. [2022-10-17 10:43:00,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 174 states have (on average 1.5229885057471264) internal successors, (265), 191 states have internal predecessors, (265), 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) [2022-10-17 10:43:00,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 273 transitions. [2022-10-17 10:43:00,651 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 273 transitions. Word has length 25 [2022-10-17 10:43:00,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:00,652 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 273 transitions. [2022-10-17 10:43:00,652 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, (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) [2022-10-17 10:43:00,652 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 273 transitions. [2022-10-17 10:43:00,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 10:43:00,653 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:00,653 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] [2022-10-17 10:43:00,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:00,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-10-17 10:43:00,866 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:00,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:00,867 INFO L85 PathProgramCache]: Analyzing trace with hash 309979375, now seen corresponding path program 1 times [2022-10-17 10:43:00,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:00,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141249630] [2022-10-17 10:43:00,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:00,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:00,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:00,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:00,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:43:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:00,954 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 10:43:00,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:00,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141249630] [2022-10-17 10:43:00,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141249630] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:00,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134638008] [2022-10-17 10:43:00,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:00,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:00,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:00,957 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:00,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:43:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:01,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:43:01,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 10:43:01,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:43:01,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134638008] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:43:01,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:43:01,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-17 10:43:01,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819580270] [2022-10-17 10:43:01,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:43:01,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:43:01,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:01,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:43:01,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:43:01,088 INFO L87 Difference]: Start difference. First operand 199 states and 273 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, (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) [2022-10-17 10:43:01,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:01,187 INFO L93 Difference]: Finished difference Result 229 states and 315 transitions. [2022-10-17 10:43:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:43:01,188 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, (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 30 [2022-10-17 10:43:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:01,190 INFO L225 Difference]: With dead ends: 229 [2022-10-17 10:43:01,190 INFO L226 Difference]: Without dead ends: 226 [2022-10-17 10:43:01,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:43:01,192 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 186 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:01,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 354 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:43:01,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-10-17 10:43:01,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 187. [2022-10-17 10:43:01,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 165 states have (on average 1.4848484848484849) internal successors, (245), 179 states have internal predecessors, (245), 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) [2022-10-17 10:43:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 253 transitions. [2022-10-17 10:43:01,207 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 253 transitions. Word has length 30 [2022-10-17 10:43:01,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:01,208 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 253 transitions. [2022-10-17 10:43:01,208 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, (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) [2022-10-17 10:43:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 253 transitions. [2022-10-17 10:43:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 10:43:01,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:01,210 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, 1] [2022-10-17 10:43:01,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:01,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:01,426 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:01,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:01,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1870081449, now seen corresponding path program 1 times [2022-10-17 10:43:01,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:01,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171094507] [2022-10-17 10:43:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:01,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:01,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:01,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:43:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 10:43:01,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:01,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171094507] [2022-10-17 10:43:01,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171094507] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:01,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405640995] [2022-10-17 10:43:01,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:01,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:01,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:01,551 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:01,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 10:43:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:01,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:43:01,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:01,678 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 10:43:01,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:43:01,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405640995] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:43:01,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:43:01,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-17 10:43:01,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130897068] [2022-10-17 10:43:01,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:43:01,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:43:01,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:01,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:43:01,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:43:01,687 INFO L87 Difference]: Start difference. First operand 187 states and 253 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-10-17 10:43:01,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:01,808 INFO L93 Difference]: Finished difference Result 217 states and 294 transitions. [2022-10-17 10:43:01,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:43:01,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 32 [2022-10-17 10:43:01,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:01,811 INFO L225 Difference]: With dead ends: 217 [2022-10-17 10:43:01,811 INFO L226 Difference]: Without dead ends: 214 [2022-10-17 10:43:01,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:43:01,812 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 166 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:01,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 360 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:43:01,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-10-17 10:43:01,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 176. [2022-10-17 10:43:01,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 157 states have (on average 1.464968152866242) internal successors, (230), 168 states have internal predecessors, (230), 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) [2022-10-17 10:43:01,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 238 transitions. [2022-10-17 10:43:01,827 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 238 transitions. Word has length 32 [2022-10-17 10:43:01,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:01,828 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 238 transitions. [2022-10-17 10:43:01,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-10-17 10:43:01,828 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 238 transitions. [2022-10-17 10:43:01,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 10:43:01,829 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:01,829 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] [2022-10-17 10:43:01,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:02,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:02,042 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:02,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:02,043 INFO L85 PathProgramCache]: Analyzing trace with hash -392453626, now seen corresponding path program 1 times [2022-10-17 10:43:02,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:02,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378933623] [2022-10-17 10:43:02,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:02,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:02,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:02,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:43:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:02,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:43:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:02,152 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-17 10:43:02,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:02,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378933623] [2022-10-17 10:43:02,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378933623] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:02,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82802059] [2022-10-17 10:43:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:02,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:02,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:02,154 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:02,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 10:43:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:02,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-17 10:43:02,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 10:43:02,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:43:02,570 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-17 10:43:02,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82802059] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:43:02,571 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:43:02,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 8] total 19 [2022-10-17 10:43:02,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892011682] [2022-10-17 10:43:02,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:43:02,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-17 10:43:02,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:02,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-17 10:43:02,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:43:02,573 INFO L87 Difference]: Start difference. First operand 176 states and 238 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 16 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2022-10-17 10:43:03,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:03,623 INFO L93 Difference]: Finished difference Result 793 states and 1039 transitions. [2022-10-17 10:43:03,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-17 10:43:03,625 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 16 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 37 [2022-10-17 10:43:03,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:03,629 INFO L225 Difference]: With dead ends: 793 [2022-10-17 10:43:03,629 INFO L226 Difference]: Without dead ends: 531 [2022-10-17 10:43:03,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=227, Invalid=1255, Unknown=0, NotChecked=0, Total=1482 [2022-10-17 10:43:03,632 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 509 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:03,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1560 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-17 10:43:03,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-10-17 10:43:03,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 199. [2022-10-17 10:43:03,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 179 states have (on average 1.4189944134078212) internal successors, (254), 190 states have internal predecessors, (254), 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) [2022-10-17 10:43:03,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 262 transitions. [2022-10-17 10:43:03,663 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 262 transitions. Word has length 37 [2022-10-17 10:43:03,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:03,665 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 262 transitions. [2022-10-17 10:43:03,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 16 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2022-10-17 10:43:03,665 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 262 transitions. [2022-10-17 10:43:03,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-17 10:43:03,667 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:03,667 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-17 10:43:03,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:03,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-17 10:43:03,890 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:03,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:03,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1867874532, now seen corresponding path program 1 times [2022-10-17 10:43:03,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:03,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146534300] [2022-10-17 10:43:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:03,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:03,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:03,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:04,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-17 10:43:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:04,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:43:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:04,038 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-17 10:43:04,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:04,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146534300] [2022-10-17 10:43:04,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146534300] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:43:04,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:43:04,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-17 10:43:04,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981876777] [2022-10-17 10:43:04,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:43:04,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:43:04,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:04,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:43:04,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:43:04,041 INFO L87 Difference]: Start difference. First operand 199 states and 262 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 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) [2022-10-17 10:43:04,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:04,194 INFO L93 Difference]: Finished difference Result 437 states and 543 transitions. [2022-10-17 10:43:04,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:43:04,195 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 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 57 [2022-10-17 10:43:04,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:04,198 INFO L225 Difference]: With dead ends: 437 [2022-10-17 10:43:04,198 INFO L226 Difference]: Without dead ends: 370 [2022-10-17 10:43:04,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:43:04,200 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 229 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:04,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 903 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:43:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-10-17 10:43:04,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 199. [2022-10-17 10:43:04,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 179 states have (on average 1.4078212290502794) internal successors, (252), 190 states have internal predecessors, (252), 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) [2022-10-17 10:43:04,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 260 transitions. [2022-10-17 10:43:04,218 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 260 transitions. Word has length 57 [2022-10-17 10:43:04,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:04,218 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 260 transitions. [2022-10-17 10:43:04,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 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) [2022-10-17 10:43:04,219 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 260 transitions. [2022-10-17 10:43:04,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-17 10:43:04,225 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:04,225 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2022-10-17 10:43:04,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-17 10:43:04,226 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:04,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:04,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1303124915, now seen corresponding path program 2 times [2022-10-17 10:43:04,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:04,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451915191] [2022-10-17 10:43:04,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:04,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:04,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:04,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-17 10:43:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:43:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:43:04,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:04,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451915191] [2022-10-17 10:43:04,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451915191] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:04,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683993122] [2022-10-17 10:43:04,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:43:04,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:04,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:04,427 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:04,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-17 10:43:04,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-17 10:43:04,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:43:04,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:43:04,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:04,554 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-17 10:43:04,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:43:04,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683993122] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:43:04,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:43:04,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2022-10-17 10:43:04,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685944937] [2022-10-17 10:43:04,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:43:04,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:43:04,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:04,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:43:04,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:43:04,557 INFO L87 Difference]: Start difference. First operand 199 states and 260 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 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) [2022-10-17 10:43:04,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:04,688 INFO L93 Difference]: Finished difference Result 373 states and 465 transitions. [2022-10-17 10:43:04,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:43:04,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 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 61 [2022-10-17 10:43:04,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:04,691 INFO L225 Difference]: With dead ends: 373 [2022-10-17 10:43:04,691 INFO L226 Difference]: Without dead ends: 321 [2022-10-17 10:43:04,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:43:04,692 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 249 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:04,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 1023 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:43:04,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-10-17 10:43:04,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 230. [2022-10-17 10:43:04,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 209 states have (on average 1.3827751196172249) internal successors, (289), 220 states have internal predecessors, (289), 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) [2022-10-17 10:43:04,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 298 transitions. [2022-10-17 10:43:04,710 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 298 transitions. Word has length 61 [2022-10-17 10:43:04,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:04,712 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 298 transitions. [2022-10-17 10:43:04,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 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) [2022-10-17 10:43:04,712 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 298 transitions. [2022-10-17 10:43:04,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-17 10:43:04,713 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:04,713 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2022-10-17 10:43:04,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:04,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-17 10:43:04,938 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:04,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:04,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1303126837, now seen corresponding path program 1 times [2022-10-17 10:43:04,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:04,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551011902] [2022-10-17 10:43:04,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:04,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:05,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:05,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:05,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-17 10:43:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:43:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:43:05,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:05,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551011902] [2022-10-17 10:43:05,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551011902] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:05,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863791312] [2022-10-17 10:43:05,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:05,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:05,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:05,106 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:05,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-17 10:43:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:05,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:43:05,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 10:43:05,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:43:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:43:05,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863791312] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:43:05,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:43:05,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 15 [2022-10-17 10:43:05,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398431219] [2022-10-17 10:43:05,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:43:05,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-17 10:43:05,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:05,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-17 10:43:05,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:43:05,378 INFO L87 Difference]: Start difference. First operand 230 states and 298 transitions. Second operand has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 14 states have internal predecessors, (85), 2 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-17 10:43:06,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:06,018 INFO L93 Difference]: Finished difference Result 1139 states and 1499 transitions. [2022-10-17 10:43:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-17 10:43:06,019 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 14 states have internal predecessors, (85), 2 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2022-10-17 10:43:06,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:06,024 INFO L225 Difference]: With dead ends: 1139 [2022-10-17 10:43:06,024 INFO L226 Difference]: Without dead ends: 945 [2022-10-17 10:43:06,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=346, Invalid=710, Unknown=0, NotChecked=0, Total=1056 [2022-10-17 10:43:06,028 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 666 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:06,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 872 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:43:06,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-10-17 10:43:06,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 250. [2022-10-17 10:43:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 229 states have (on average 1.3668122270742358) internal successors, (313), 240 states have internal predecessors, (313), 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) [2022-10-17 10:43:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 322 transitions. [2022-10-17 10:43:06,061 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 322 transitions. Word has length 61 [2022-10-17 10:43:06,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:06,061 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 322 transitions. [2022-10-17 10:43:06,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 14 states have internal predecessors, (85), 2 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-17 10:43:06,061 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 322 transitions. [2022-10-17 10:43:06,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 10:43:06,062 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:06,062 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, 1, 1, 1, 1, 1, 1] [2022-10-17 10:43:06,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:06,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-17 10:43:06,279 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:06,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:06,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1609979175, now seen corresponding path program 1 times [2022-10-17 10:43:06,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:06,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216822617] [2022-10-17 10:43:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:06,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:06,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:43:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-17 10:43:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:06,492 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:43:06,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:06,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216822617] [2022-10-17 10:43:06,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216822617] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:06,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959021856] [2022-10-17 10:43:06,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:06,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:06,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:06,498 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:06,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-17 10:43:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:06,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 10:43:06,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:06,655 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 10:43:06,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:43:06,819 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-17 10:43:06,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959021856] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:43:06,819 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:43:06,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6] total 15 [2022-10-17 10:43:06,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810592733] [2022-10-17 10:43:06,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:43:06,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-17 10:43:06,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:06,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-17 10:43:06,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:43:06,821 INFO L87 Difference]: Start difference. First operand 250 states and 322 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 12 states have internal predecessors, (79), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2022-10-17 10:43:08,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:08,076 INFO L93 Difference]: Finished difference Result 719 states and 913 transitions. [2022-10-17 10:43:08,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-17 10:43:08,077 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 12 states have internal predecessors, (79), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 64 [2022-10-17 10:43:08,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:08,081 INFO L225 Difference]: With dead ends: 719 [2022-10-17 10:43:08,081 INFO L226 Difference]: Without dead ends: 512 [2022-10-17 10:43:08,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=565, Invalid=1985, Unknown=0, NotChecked=0, Total=2550 [2022-10-17 10:43:08,083 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 578 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:08,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 741 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:43:08,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-10-17 10:43:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 250. [2022-10-17 10:43:08,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 229 states have (on average 1.3493449781659388) internal successors, (309), 240 states have internal predecessors, (309), 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) [2022-10-17 10:43:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 318 transitions. [2022-10-17 10:43:08,117 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 318 transitions. Word has length 64 [2022-10-17 10:43:08,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:08,118 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 318 transitions. [2022-10-17 10:43:08,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 12 states have internal predecessors, (79), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2022-10-17 10:43:08,118 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 318 transitions. [2022-10-17 10:43:08,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-17 10:43:08,119 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:08,119 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:43:08,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:08,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-17 10:43:08,333 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:08,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:08,334 INFO L85 PathProgramCache]: Analyzing trace with hash 768500551, now seen corresponding path program 1 times [2022-10-17 10:43:08,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:08,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895688479] [2022-10-17 10:43:08,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:08,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:08,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-17 10:43:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-17 10:43:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:43:08,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:08,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895688479] [2022-10-17 10:43:08,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895688479] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:08,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487762533] [2022-10-17 10:43:08,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:08,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:08,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:08,590 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:08,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-17 10:43:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:08,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 10:43:08,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:08,743 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 10:43:08,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:43:08,874 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:43:08,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487762533] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:43:08,875 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:43:08,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-10-17 10:43:08,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013104944] [2022-10-17 10:43:08,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:43:08,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-17 10:43:08,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:08,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-17 10:43:08,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-10-17 10:43:08,877 INFO L87 Difference]: Start difference. First operand 250 states and 318 transitions. Second operand has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 13 states have internal predecessors, (99), 2 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-17 10:43:09,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:09,922 INFO L93 Difference]: Finished difference Result 894 states and 1137 transitions. [2022-10-17 10:43:09,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-17 10:43:09,922 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 13 states have internal predecessors, (99), 2 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2022-10-17 10:43:09,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:09,926 INFO L225 Difference]: With dead ends: 894 [2022-10-17 10:43:09,926 INFO L226 Difference]: Without dead ends: 644 [2022-10-17 10:43:09,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=345, Invalid=845, Unknown=0, NotChecked=0, Total=1190 [2022-10-17 10:43:09,928 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 569 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:09,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 707 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:43:09,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-10-17 10:43:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 281. [2022-10-17 10:43:09,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 260 states have (on average 1.3076923076923077) internal successors, (340), 271 states have internal predecessors, (340), 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) [2022-10-17 10:43:09,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 349 transitions. [2022-10-17 10:43:09,963 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 349 transitions. Word has length 71 [2022-10-17 10:43:09,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:09,963 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 349 transitions. [2022-10-17 10:43:09,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 13 states have internal predecessors, (99), 2 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-17 10:43:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 349 transitions. [2022-10-17 10:43:09,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-17 10:43:09,965 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:09,965 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 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] [2022-10-17 10:43:09,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:10,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-17 10:43:10,186 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:10,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:10,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1043554459, now seen corresponding path program 1 times [2022-10-17 10:43:10,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:10,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401218740] [2022-10-17 10:43:10,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:10,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:10,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:10,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:10,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:43:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:10,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-17 10:43:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:10,468 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:43:10,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:10,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401218740] [2022-10-17 10:43:10,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401218740] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:10,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490226860] [2022-10-17 10:43:10,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:10,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:10,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:10,471 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:10,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-17 10:43:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:10,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 10:43:10,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:10,699 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 26 proven. 87 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 10:43:10,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:43:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:43:11,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490226860] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:43:11,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:43:11,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 27 [2022-10-17 10:43:11,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178598570] [2022-10-17 10:43:11,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:43:11,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-17 10:43:11,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:11,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-17 10:43:11,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=470, Unknown=0, NotChecked=0, Total=702 [2022-10-17 10:43:11,020 INFO L87 Difference]: Start difference. First operand 281 states and 349 transitions. Second operand has 27 states, 27 states have (on average 5.444444444444445) internal successors, (147), 26 states have internal predecessors, (147), 2 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-17 10:43:12,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:12,658 INFO L93 Difference]: Finished difference Result 1899 states and 2505 transitions. [2022-10-17 10:43:12,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-10-17 10:43:12,658 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.444444444444445) internal successors, (147), 26 states have internal predecessors, (147), 2 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2022-10-17 10:43:12,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:12,667 INFO L225 Difference]: With dead ends: 1899 [2022-10-17 10:43:12,667 INFO L226 Difference]: Without dead ends: 1663 [2022-10-17 10:43:12,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 918 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1154, Invalid=2386, Unknown=0, NotChecked=0, Total=3540 [2022-10-17 10:43:12,671 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 1418 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:12,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 1024 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-17 10:43:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2022-10-17 10:43:12,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 332. [2022-10-17 10:43:12,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 311 states have (on average 1.2958199356913183) internal successors, (403), 322 states have internal predecessors, (403), 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) [2022-10-17 10:43:12,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 412 transitions. [2022-10-17 10:43:12,744 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 412 transitions. Word has length 83 [2022-10-17 10:43:12,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:12,744 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 412 transitions. [2022-10-17 10:43:12,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.444444444444445) internal successors, (147), 26 states have internal predecessors, (147), 2 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-17 10:43:12,745 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 412 transitions. [2022-10-17 10:43:12,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 10:43:12,746 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:12,746 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 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] [2022-10-17 10:43:12,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:12,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-17 10:43:12,962 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:12,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:12,962 INFO L85 PathProgramCache]: Analyzing trace with hash -602965433, now seen corresponding path program 2 times [2022-10-17 10:43:12,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:12,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313499569] [2022-10-17 10:43:12,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:12,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:13,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:13,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:13,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:43:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:13,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-17 10:43:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 4 proven. 85 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:43:13,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:13,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313499569] [2022-10-17 10:43:13,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313499569] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:13,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099578365] [2022-10-17 10:43:13,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:43:13,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:13,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:13,414 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:13,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-17 10:43:13,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-17 10:43:13,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:43:13,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 10:43:13,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-10-17 10:43:13,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:43:13,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099578365] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:43:13,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:43:13,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2022-10-17 10:43:13,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557775476] [2022-10-17 10:43:13,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:43:13,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:43:13,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:13,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:43:13,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:43:13,615 INFO L87 Difference]: Start difference. First operand 332 states and 412 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2022-10-17 10:43:13,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:13,774 INFO L93 Difference]: Finished difference Result 423 states and 515 transitions. [2022-10-17 10:43:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:43:13,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 91 [2022-10-17 10:43:13,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:13,777 INFO L225 Difference]: With dead ends: 423 [2022-10-17 10:43:13,778 INFO L226 Difference]: Without dead ends: 421 [2022-10-17 10:43:13,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-10-17 10:43:13,779 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 240 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:13,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 1018 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:43:13,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-10-17 10:43:13,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 332. [2022-10-17 10:43:13,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 311 states have (on average 1.2958199356913183) internal successors, (403), 322 states have internal predecessors, (403), 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) [2022-10-17 10:43:13,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 412 transitions. [2022-10-17 10:43:13,819 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 412 transitions. Word has length 91 [2022-10-17 10:43:13,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:13,820 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 412 transitions. [2022-10-17 10:43:13,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2022-10-17 10:43:13,820 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 412 transitions. [2022-10-17 10:43:13,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 10:43:13,822 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:13,822 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 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] [2022-10-17 10:43:13,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:14,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:14,026 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:14,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:14,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1412310137, now seen corresponding path program 1 times [2022-10-17 10:43:14,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:14,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265602549] [2022-10-17 10:43:14,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:14,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:14,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:43:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-17 10:43:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:14,193 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-10-17 10:43:14,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:14,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265602549] [2022-10-17 10:43:14,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265602549] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:14,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589213874] [2022-10-17 10:43:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:14,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:14,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:14,198 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:14,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-17 10:43:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:14,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:43:14,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-10-17 10:43:14,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:43:14,408 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-10-17 10:43:14,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589213874] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:43:14,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:43:14,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2022-10-17 10:43:14,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416108348] [2022-10-17 10:43:14,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:43:14,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-17 10:43:14,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:14,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-17 10:43:14,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:43:14,411 INFO L87 Difference]: Start difference. First operand 332 states and 412 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-17 10:43:14,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:43:14,659 INFO L93 Difference]: Finished difference Result 710 states and 862 transitions. [2022-10-17 10:43:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:43:14,660 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 91 [2022-10-17 10:43:14,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:43:14,669 INFO L225 Difference]: With dead ends: 710 [2022-10-17 10:43:14,669 INFO L226 Difference]: Without dead ends: 646 [2022-10-17 10:43:14,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:43:14,673 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 460 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:43:14,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1633 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:43:14,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2022-10-17 10:43:14,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 359. [2022-10-17 10:43:14,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 336 states have (on average 1.2857142857142858) internal successors, (432), 346 states have internal predecessors, (432), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-17 10:43:14,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 445 transitions. [2022-10-17 10:43:14,751 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 445 transitions. Word has length 91 [2022-10-17 10:43:14,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:43:14,751 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 445 transitions. [2022-10-17 10:43:14,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-17 10:43:14,752 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 445 transitions. [2022-10-17 10:43:14,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 10:43:14,754 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:43:14,754 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 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] [2022-10-17 10:43:14,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:43:14,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:14,967 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-17 10:43:14,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:43:14,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1412312059, now seen corresponding path program 1 times [2022-10-17 10:43:14,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:43:14,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576141750] [2022-10-17 10:43:14,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:14,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:43:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:43:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:15,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:43:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:15,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:43:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:15,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-17 10:43:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:15,352 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 4 proven. 85 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:43:15,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:43:15,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576141750] [2022-10-17 10:43:15,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576141750] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:43:15,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678310658] [2022-10-17 10:43:15,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:43:15,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:43:15,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:43:15,354 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:43:15,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb8fc95-b4ea-4d8a-a275-3870983633ae/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-17 10:43:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:43:15,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-17 10:43:15,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:43:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 26 proven. 75 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 10:43:15,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:43:16,418 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 4 proven. 85 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:43:16,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678310658] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:43:16,418 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:43:16,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 26 [2022-10-17 10:43:16,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270502590] [2022-10-17 10:43:16,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:43:16,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-17 10:43:16,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:43:16,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-17 10:43:16,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-10-17 10:43:16,420 INFO L87 Difference]: Start difference. First operand 359 states and 445 transitions. Second operand has 26 states, 26 states have (on average 6.115384615384615) internal successors, (159), 25 states have internal predecessors, (159), 2 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-17 10:43:22,074 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 47 DAG size of output: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)