./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/dll2c_insert_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_insert_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN --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 1b81f923e96224472f8219a473f794261ff02356a47c6b09b527f0fc600725a8 --- 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-6b4ec56 [2022-11-20 10:35:07,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:35:07,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:35:07,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:35:07,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:35:07,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:35:07,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:35:07,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:35:07,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:35:07,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:35:07,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:35:07,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:35:07,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:35:07,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:35:07,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:35:07,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:35:07,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:35:07,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:35:07,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:35:07,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:35:07,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:35:07,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:35:07,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:35:07,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:35:07,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:35:07,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:35:07,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:35:07,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:35:07,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:35:07,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:35:07,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:35:07,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:35:07,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:35:07,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:35:07,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:35:07,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:35:07,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:35:07,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:35:07,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:35:07,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:35:07,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:35:07,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:35:07,523 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:35:07,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:35:07,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:35:07,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:35:07,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:35:07,530 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:35:07,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:35:07,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:35:07,531 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:35:07,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:35:07,533 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:35:07,533 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:35:07,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:35:07,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:35:07,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:35:07,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:35:07,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:35:07,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:35:07,535 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:35:07,535 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:35:07,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:35:07,535 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:35:07,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:35:07,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:35:07,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:35:07,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:35:07,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:07,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:35:07,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:35:07,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:35:07,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:35:07,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:35:07,539 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:35:07,540 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:35:07,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:35:07,540 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_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b81f923e96224472f8219a473f794261ff02356a47c6b09b527f0fc600725a8 [2022-11-20 10:35:07,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:35:07,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:35:07,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:35:07,924 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:35:07,925 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:35:07,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/list-simple/dll2c_insert_unequal.i [2022-11-20 10:35:11,243 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:35:11,543 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:35:11,548 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i [2022-11-20 10:35:11,564 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/data/41aaffcda/182c0d129b15455d87a9e75a37750146/FLAGad2f060fc [2022-11-20 10:35:11,578 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/data/41aaffcda/182c0d129b15455d87a9e75a37750146 [2022-11-20 10:35:11,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:35:11,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:35:11,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:11,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:35:11,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:35:11,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:11" (1/1) ... [2022-11-20 10:35:11,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@641eb4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:11, skipping insertion in model container [2022-11-20 10:35:11,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:11" (1/1) ... [2022-11-20 10:35:11,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:35:11,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:35:11,962 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i[25148,25161] [2022-11-20 10:35:11,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:11,982 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:35:12,026 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i[25148,25161] [2022-11-20 10:35:12,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:12,053 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:35:12,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12 WrapperNode [2022-11-20 10:35:12,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:12,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:12,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:35:12,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:35:12,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,120 INFO L138 Inliner]: procedures = 127, calls = 58, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-11-20 10:35:12,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:12,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:35:12,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:35:12,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:35:12,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,169 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:35:12,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:35:12,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:35:12,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:35:12,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (1/1) ... [2022-11-20 10:35:12,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:12,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:12,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:12,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:35:12,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:35:12,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:35:12,267 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-20 10:35:12,267 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-20 10:35:12,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:35:12,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:35:12,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:35:12,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:35:12,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:35:12,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:35:12,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:35:12,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:35:12,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:35:12,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:35:12,417 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:35:12,419 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:35:13,001 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:35:13,009 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:35:13,009 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 10:35:13,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:13 BoogieIcfgContainer [2022-11-20 10:35:13,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:35:13,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:35:13,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:35:13,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:35:13,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:35:11" (1/3) ... [2022-11-20 10:35:13,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a78c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:35:13, skipping insertion in model container [2022-11-20 10:35:13,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:12" (2/3) ... [2022-11-20 10:35:13,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a78c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:35:13, skipping insertion in model container [2022-11-20 10:35:13,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:13" (3/3) ... [2022-11-20 10:35:13,030 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_insert_unequal.i [2022-11-20 10:35:13,054 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:35:13,055 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-20 10:35:13,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:35:13,124 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71a3ae2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:35:13,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-20 10:35:13,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 52 states have (on average 1.6346153846153846) internal successors, (85), 66 states have internal predecessors, (85), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:13,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 10:35:13,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:13,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:13,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:13,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:13,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1176616069, now seen corresponding path program 1 times [2022-11-20 10:35:13,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:13,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457260378] [2022-11-20 10:35:13,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:13,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:13,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:13,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:13,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457260378] [2022-11-20 10:35:13,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457260378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:13,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:13,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:35:13,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163291317] [2022-11-20 10:35:13,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:13,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:13,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:13,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:13,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:13,829 INFO L87 Difference]: Start difference. First operand has 71 states, 52 states have (on average 1.6346153846153846) internal successors, (85), 66 states have internal predecessors, (85), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:35:14,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:14,042 INFO L93 Difference]: Finished difference Result 138 states and 177 transitions. [2022-11-20 10:35:14,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:14,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-11-20 10:35:14,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:14,058 INFO L225 Difference]: With dead ends: 138 [2022-11-20 10:35:14,058 INFO L226 Difference]: Without dead ends: 70 [2022-11-20 10:35:14,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:14,067 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 8 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:14,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 212 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:14,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-20 10:35:14,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2022-11-20 10:35:14,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 57 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:14,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2022-11-20 10:35:14,129 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 13 [2022-11-20 10:35:14,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:14,130 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2022-11-20 10:35:14,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:35:14,131 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2022-11-20 10:35:14,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 10:35:14,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:14,133 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:14,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:35:14,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:14,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:14,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1532038948, now seen corresponding path program 1 times [2022-11-20 10:35:14,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:14,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341060315] [2022-11-20 10:35:14,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:14,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:14,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:14,374 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 10:35:14,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:14,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341060315] [2022-11-20 10:35:14,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341060315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:14,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:14,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:35:14,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772575722] [2022-11-20 10:35:14,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:14,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:35:14,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:14,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:35:14,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:14,378 INFO L87 Difference]: Start difference. First operand 62 states and 70 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:35:14,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:14,545 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2022-11-20 10:35:14,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:35:14,547 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-11-20 10:35:14,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:14,556 INFO L225 Difference]: With dead ends: 70 [2022-11-20 10:35:14,556 INFO L226 Difference]: Without dead ends: 68 [2022-11-20 10:35:14,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:14,560 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 4 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:14,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 227 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:14,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-20 10:35:14,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-20 10:35:14,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 62 states have internal predecessors, (70), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:35:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2022-11-20 10:35:14,578 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 20 [2022-11-20 10:35:14,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:14,578 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2022-11-20 10:35:14,579 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:35:14,579 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2022-11-20 10:35:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 10:35:14,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:14,581 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:14,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:35:14,582 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:14,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:14,583 INFO L85 PathProgramCache]: Analyzing trace with hash -392726583, now seen corresponding path program 1 times [2022-11-20 10:35:14,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:14,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126088264] [2022-11-20 10:35:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:14,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:14,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:14,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:35:14,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:14,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126088264] [2022-11-20 10:35:14,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126088264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:14,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:14,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:14,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955528646] [2022-11-20 10:35:14,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:14,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:14,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:14,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:14,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:14,874 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:35:14,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:14,965 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2022-11-20 10:35:14,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:14,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-11-20 10:35:14,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:14,967 INFO L225 Difference]: With dead ends: 68 [2022-11-20 10:35:14,967 INFO L226 Difference]: Without dead ends: 62 [2022-11-20 10:35:14,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:14,969 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 43 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:14,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 103 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:14,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-20 10:35:14,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-20 10:35:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 56 states have internal predecessors, (64), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:35:14,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2022-11-20 10:35:14,977 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 25 [2022-11-20 10:35:14,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:14,977 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2022-11-20 10:35:14,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:35:14,978 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2022-11-20 10:35:14,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-20 10:35:14,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:14,979 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:14,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:35:14,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:14,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:14,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1043400470, now seen corresponding path program 1 times [2022-11-20 10:35:14,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:14,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288945155] [2022-11-20 10:35:14,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:14,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:15,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 10:35:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 10:35:15,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:15,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288945155] [2022-11-20 10:35:15,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288945155] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:15,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991282642] [2022-11-20 10:35:15,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:15,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:15,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:15,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:15,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:35:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:15,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:35:15,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 10:35:15,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:15,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991282642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:15,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:35:15,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-11-20 10:35:15,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138654975] [2022-11-20 10:35:15,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:15,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:35:15,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:15,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:35:15,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:35:15,522 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:35:15,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:15,593 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2022-11-20 10:35:15,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:35:15,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2022-11-20 10:35:15,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:15,597 INFO L225 Difference]: With dead ends: 105 [2022-11-20 10:35:15,598 INFO L226 Difference]: Without dead ends: 54 [2022-11-20 10:35:15,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:35:15,608 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 85 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:15,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 123 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:35:15,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-20 10:35:15,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-20 10:35:15,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 49 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:15,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2022-11-20 10:35:15,622 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 32 [2022-11-20 10:35:15,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:15,625 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2022-11-20 10:35:15,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:35:15,625 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2022-11-20 10:35:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 10:35:15,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:15,632 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:15,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:15,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:15,845 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:15,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:15,846 INFO L85 PathProgramCache]: Analyzing trace with hash 134417299, now seen corresponding path program 1 times [2022-11-20 10:35:15,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:15,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841705526] [2022-11-20 10:35:15,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:15,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,207 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:35:16,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:16,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841705526] [2022-11-20 10:35:16,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841705526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:16,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:16,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:16,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571808650] [2022-11-20 10:35:16,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:16,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:16,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:16,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:16,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:16,209 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:35:16,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:16,338 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2022-11-20 10:35:16,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:16,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2022-11-20 10:35:16,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:16,340 INFO L225 Difference]: With dead ends: 54 [2022-11-20 10:35:16,340 INFO L226 Difference]: Without dead ends: 53 [2022-11-20 10:35:16,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:35:16,341 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 72 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:16,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 159 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:16,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-20 10:35:16,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-20 10:35:16,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 48 states have internal predecessors, (54), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:16,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2022-11-20 10:35:16,349 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 35 [2022-11-20 10:35:16,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:16,349 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2022-11-20 10:35:16,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:35:16,350 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-11-20 10:35:16,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 10:35:16,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:16,351 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:16,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:35:16,351 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:16,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:16,352 INFO L85 PathProgramCache]: Analyzing trace with hash -128030946, now seen corresponding path program 1 times [2022-11-20 10:35:16,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:16,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560318842] [2022-11-20 10:35:16,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:16,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,521 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:35:16,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:16,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560318842] [2022-11-20 10:35:16,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560318842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:16,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:16,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:16,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749242686] [2022-11-20 10:35:16,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:16,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:16,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:16,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:16,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:16,528 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:16,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:16,619 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2022-11-20 10:35:16,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:16,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-11-20 10:35:16,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:16,621 INFO L225 Difference]: With dead ends: 53 [2022-11-20 10:35:16,621 INFO L226 Difference]: Without dead ends: 52 [2022-11-20 10:35:16,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:16,623 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:16,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:16,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-20 10:35:16,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-20 10:35:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 47 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2022-11-20 10:35:16,631 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 36 [2022-11-20 10:35:16,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:16,631 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2022-11-20 10:35:16,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:16,632 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2022-11-20 10:35:16,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 10:35:16,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:16,633 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:16,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:35:16,634 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:16,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:16,634 INFO L85 PathProgramCache]: Analyzing trace with hash -288215677, now seen corresponding path program 1 times [2022-11-20 10:35:16,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:16,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169067082] [2022-11-20 10:35:16,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:16,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:16,830 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:35:16,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:16,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169067082] [2022-11-20 10:35:16,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169067082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:16,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:16,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:35:16,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471834867] [2022-11-20 10:35:16,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:16,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:16,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:16,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:16,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:16,833 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:16,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:16,925 INFO L93 Difference]: Finished difference Result 100 states and 111 transitions. [2022-11-20 10:35:16,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:16,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-11-20 10:35:16,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:16,927 INFO L225 Difference]: With dead ends: 100 [2022-11-20 10:35:16,927 INFO L226 Difference]: Without dead ends: 77 [2022-11-20 10:35:16,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:16,930 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 28 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:16,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 139 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:16,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-20 10:35:16,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 54. [2022-11-20 10:35:16,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 49 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:16,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2022-11-20 10:35:16,953 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 39 [2022-11-20 10:35:16,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:16,955 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2022-11-20 10:35:16,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:16,955 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2022-11-20 10:35:16,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-20 10:35:16,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:16,964 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:16,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:35:16,964 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:16,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:16,965 INFO L85 PathProgramCache]: Analyzing trace with hash -442680441, now seen corresponding path program 1 times [2022-11-20 10:35:16,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:16,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317205879] [2022-11-20 10:35:16,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:16,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:17,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:17,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:35:17,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:17,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317205879] [2022-11-20 10:35:17,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317205879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:17,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:17,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:35:17,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3981663] [2022-11-20 10:35:17,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:17,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:35:17,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:17,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:35:17,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:17,169 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:17,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:17,292 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2022-11-20 10:35:17,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:35:17,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-11-20 10:35:17,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:17,293 INFO L225 Difference]: With dead ends: 60 [2022-11-20 10:35:17,294 INFO L226 Difference]: Without dead ends: 58 [2022-11-20 10:35:17,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:17,296 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 3 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:17,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 185 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:17,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-20 10:35:17,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-20 10:35:17,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 48 states have (on average 1.25) internal successors, (60), 53 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:17,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2022-11-20 10:35:17,304 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 41 [2022-11-20 10:35:17,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:17,304 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2022-11-20 10:35:17,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:17,305 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2022-11-20 10:35:17,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 10:35:17,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:17,306 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:17,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:35:17,306 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:17,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:17,307 INFO L85 PathProgramCache]: Analyzing trace with hash 885464081, now seen corresponding path program 1 times [2022-11-20 10:35:17,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:17,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397144240] [2022-11-20 10:35:17,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:17,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:17,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:17,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:17,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:35:17,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:17,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397144240] [2022-11-20 10:35:17,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397144240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:17,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:17,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:35:17,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151633291] [2022-11-20 10:35:17,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:17,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:35:17,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:17,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:35:17,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:35:17,559 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:17,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:17,767 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2022-11-20 10:35:17,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:35:17,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2022-11-20 10:35:17,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:17,768 INFO L225 Difference]: With dead ends: 72 [2022-11-20 10:35:17,769 INFO L226 Difference]: Without dead ends: 71 [2022-11-20 10:35:17,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:35:17,770 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 14 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:17,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 261 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:35:17,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-20 10:35:17,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2022-11-20 10:35:17,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 58 states have internal predecessors, (66), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:17,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2022-11-20 10:35:17,777 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 47 [2022-11-20 10:35:17,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:17,778 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2022-11-20 10:35:17,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:17,778 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2022-11-20 10:35:17,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 10:35:17,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:17,779 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:17,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:35:17,780 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:17,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:17,780 INFO L85 PathProgramCache]: Analyzing trace with hash 885503803, now seen corresponding path program 1 times [2022-11-20 10:35:17,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:17,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944436214] [2022-11-20 10:35:17,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:17,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:17,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:18,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:18,011 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:35:18,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:18,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944436214] [2022-11-20 10:35:18,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944436214] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:18,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961923082] [2022-11-20 10:35:18,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:18,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:18,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:18,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:18,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:35:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:18,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:35:18,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:35:18,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:18,419 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:35:18,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961923082] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:18,420 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:18,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-11-20 10:35:18,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528862369] [2022-11-20 10:35:18,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:18,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 10:35:18,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:18,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 10:35:18,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:35:18,422 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. Second operand has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:18,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:18,665 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2022-11-20 10:35:18,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:35:18,666 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2022-11-20 10:35:18,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:18,667 INFO L225 Difference]: With dead ends: 97 [2022-11-20 10:35:18,667 INFO L226 Difference]: Without dead ends: 96 [2022-11-20 10:35:18,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:35:18,669 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 42 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:18,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 369 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:18,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-20 10:35:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 78. [2022-11-20 10:35:18,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 68 states have (on average 1.25) internal successors, (85), 73 states have internal predecessors, (85), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:18,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2022-11-20 10:35:18,678 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 47 [2022-11-20 10:35:18,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:18,678 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2022-11-20 10:35:18,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2022-11-20 10:35:18,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-20 10:35:18,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:18,680 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:18,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:18,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 10:35:18,893 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:18,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:18,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1679582866, now seen corresponding path program 1 times [2022-11-20 10:35:18,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:18,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681211916] [2022-11-20 10:35:18,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:18,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:19,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:19,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:19,222 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:35:19,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:19,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681211916] [2022-11-20 10:35:19,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681211916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:19,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:19,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:19,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777975593] [2022-11-20 10:35:19,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:19,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:35:19,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:19,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:35:19,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:19,226 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:35:19,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:19,326 INFO L93 Difference]: Finished difference Result 129 states and 149 transitions. [2022-11-20 10:35:19,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:35:19,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-11-20 10:35:19,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:19,328 INFO L225 Difference]: With dead ends: 129 [2022-11-20 10:35:19,329 INFO L226 Difference]: Without dead ends: 79 [2022-11-20 10:35:19,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:19,330 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 41 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:19,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 140 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-20 10:35:19,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2022-11-20 10:35:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 72 states have internal predecessors, (83), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:19,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2022-11-20 10:35:19,343 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 48 [2022-11-20 10:35:19,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:19,344 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2022-11-20 10:35:19,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:35:19,344 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2022-11-20 10:35:19,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-20 10:35:19,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:19,345 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:19,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:35:19,345 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:19,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:19,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2117202615, now seen corresponding path program 1 times [2022-11-20 10:35:19,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:19,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758839347] [2022-11-20 10:35:19,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:19,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:19,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:19,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:19,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:19,601 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:19,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:19,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758839347] [2022-11-20 10:35:19,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758839347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:19,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:19,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:35:19,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406508361] [2022-11-20 10:35:19,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:19,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:35:19,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:19,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:35:19,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:35:19,604 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:19,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:19,755 INFO L93 Difference]: Finished difference Result 86 states and 97 transitions. [2022-11-20 10:35:19,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:35:19,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2022-11-20 10:35:19,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:19,757 INFO L225 Difference]: With dead ends: 86 [2022-11-20 10:35:19,757 INFO L226 Difference]: Without dead ends: 85 [2022-11-20 10:35:19,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:35:19,758 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 14 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:19,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 270 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:19,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-20 10:35:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 78. [2022-11-20 10:35:19,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 73 states have internal predecessors, (84), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:19,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 90 transitions. [2022-11-20 10:35:19,765 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 90 transitions. Word has length 49 [2022-11-20 10:35:19,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:19,766 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 90 transitions. [2022-11-20 10:35:19,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:19,766 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 90 transitions. [2022-11-20 10:35:19,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-20 10:35:19,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:19,767 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:19,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:35:19,768 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:19,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:19,768 INFO L85 PathProgramCache]: Analyzing trace with hash -2115971253, now seen corresponding path program 1 times [2022-11-20 10:35:19,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:19,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254850418] [2022-11-20 10:35:19,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:19,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:20,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:20,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:20,040 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:20,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:20,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254850418] [2022-11-20 10:35:20,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254850418] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:20,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380318559] [2022-11-20 10:35:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:20,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:20,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:20,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:20,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:35:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:20,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:35:20,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:20,386 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:20,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:20,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380318559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:20,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:35:20,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-11-20 10:35:20,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509944818] [2022-11-20 10:35:20,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:20,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:20,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:20,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:20,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:35:20,389 INFO L87 Difference]: Start difference. First operand 78 states and 90 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:20,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:20,432 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2022-11-20 10:35:20,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:20,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2022-11-20 10:35:20,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:20,434 INFO L225 Difference]: With dead ends: 78 [2022-11-20 10:35:20,434 INFO L226 Difference]: Without dead ends: 77 [2022-11-20 10:35:20,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:35:20,435 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 22 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:20,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 144 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:35:20,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-20 10:35:20,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-20 10:35:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 72 states have internal predecessors, (81), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:20,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2022-11-20 10:35:20,442 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 49 [2022-11-20 10:35:20,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:20,442 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2022-11-20 10:35:20,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:20,442 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2022-11-20 10:35:20,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 10:35:20,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:20,443 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:20,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:20,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:20,649 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:20,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:20,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1988227488, now seen corresponding path program 1 times [2022-11-20 10:35:20,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:20,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512753369] [2022-11-20 10:35:20,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:20,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:20,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:20,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:20,877 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:20,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:20,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512753369] [2022-11-20 10:35:20,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512753369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:20,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:20,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:35:20,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762382210] [2022-11-20 10:35:20,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:20,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:35:20,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:20,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:35:20,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:35:20,880 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:21,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:21,029 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2022-11-20 10:35:21,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:35:21,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2022-11-20 10:35:21,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:21,030 INFO L225 Difference]: With dead ends: 83 [2022-11-20 10:35:21,030 INFO L226 Difference]: Without dead ends: 82 [2022-11-20 10:35:21,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:35:21,031 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 19 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:21,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 291 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:21,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-20 10:35:21,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2022-11-20 10:35:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 71 states have (on average 1.1830985915492958) internal successors, (84), 75 states have internal predecessors, (84), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:21,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2022-11-20 10:35:21,037 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 52 [2022-11-20 10:35:21,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:21,038 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2022-11-20 10:35:21,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:21,038 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2022-11-20 10:35:21,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:35:21,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:21,039 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:21,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:35:21,040 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:21,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:21,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1505509840, now seen corresponding path program 1 times [2022-11-20 10:35:21,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:21,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111051922] [2022-11-20 10:35:21,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:21,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:21,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:21,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:21,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:21,324 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:21,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:21,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111051922] [2022-11-20 10:35:21,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111051922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:21,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:21,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:35:21,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818899033] [2022-11-20 10:35:21,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:21,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:35:21,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:21,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:35:21,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:35:21,328 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:21,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:21,502 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2022-11-20 10:35:21,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:35:21,503 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 53 [2022-11-20 10:35:21,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:21,504 INFO L225 Difference]: With dead ends: 88 [2022-11-20 10:35:21,504 INFO L226 Difference]: Without dead ends: 87 [2022-11-20 10:35:21,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:35:21,505 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 15 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:21,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 344 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:21,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-20 10:35:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2022-11-20 10:35:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 77 states have (on average 1.1818181818181819) internal successors, (91), 81 states have internal predecessors, (91), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:21,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 97 transitions. [2022-11-20 10:35:21,514 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 97 transitions. Word has length 53 [2022-11-20 10:35:21,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:21,514 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 97 transitions. [2022-11-20 10:35:21,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:21,514 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 97 transitions. [2022-11-20 10:35:21,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-20 10:35:21,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:21,515 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:21,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 10:35:21,516 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:21,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:21,516 INFO L85 PathProgramCache]: Analyzing trace with hash 309851246, now seen corresponding path program 1 times [2022-11-20 10:35:21,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:21,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925376664] [2022-11-20 10:35:21,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:21,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:21,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:21,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:21,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:21,750 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:21,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:21,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925376664] [2022-11-20 10:35:21,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925376664] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:21,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255157086] [2022-11-20 10:35:21,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:21,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:21,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:21,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:21,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:35:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:22,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:35:22,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:22,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:22,267 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:22,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255157086] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:22,268 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:22,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2022-11-20 10:35:22,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516168128] [2022-11-20 10:35:22,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:22,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 10:35:22,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:22,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 10:35:22,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:35:22,270 INFO L87 Difference]: Start difference. First operand 86 states and 97 transitions. Second operand has 17 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:22,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:22,572 INFO L93 Difference]: Finished difference Result 117 states and 131 transitions. [2022-11-20 10:35:22,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 10:35:22,573 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 54 [2022-11-20 10:35:22,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:22,574 INFO L225 Difference]: With dead ends: 117 [2022-11-20 10:35:22,574 INFO L226 Difference]: Without dead ends: 116 [2022-11-20 10:35:22,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2022-11-20 10:35:22,575 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 82 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:22,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 450 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:35:22,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-20 10:35:22,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 92. [2022-11-20 10:35:22,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 83 states have (on average 1.180722891566265) internal successors, (98), 87 states have internal predecessors, (98), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:22,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2022-11-20 10:35:22,583 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 54 [2022-11-20 10:35:22,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:22,583 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2022-11-20 10:35:22,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:22,584 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2022-11-20 10:35:22,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 10:35:22,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:22,585 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:22,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:22,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:22,793 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:22,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:22,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1015454165, now seen corresponding path program 1 times [2022-11-20 10:35:22,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:22,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211160987] [2022-11-20 10:35:22,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:22,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:23,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:23,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:23,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:23,032 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:23,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:23,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211160987] [2022-11-20 10:35:23,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211160987] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:23,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69713113] [2022-11-20 10:35:23,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:23,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:23,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:23,035 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:23,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:35:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:23,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:35:23,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:23,475 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:23,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:23,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69713113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:23,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:35:23,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 10 [2022-11-20 10:35:23,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787183745] [2022-11-20 10:35:23,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:23,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:35:23,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:23,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:35:23,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:35:23,478 INFO L87 Difference]: Start difference. First operand 92 states and 104 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:23,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:23,593 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2022-11-20 10:35:23,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:35:23,594 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-11-20 10:35:23,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:23,595 INFO L225 Difference]: With dead ends: 98 [2022-11-20 10:35:23,595 INFO L226 Difference]: Without dead ends: 97 [2022-11-20 10:35:23,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:35:23,596 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 33 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:23,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 252 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:23,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-20 10:35:23,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 91. [2022-11-20 10:35:23,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 83 states have (on average 1.1686746987951808) internal successors, (97), 86 states have internal predecessors, (97), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2022-11-20 10:35:23,604 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 55 [2022-11-20 10:35:23,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:23,604 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2022-11-20 10:35:23,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:23,605 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2022-11-20 10:35:23,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 10:35:23,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:23,605 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:23,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:23,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:23,820 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:23,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:23,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1587263412, now seen corresponding path program 1 times [2022-11-20 10:35:23,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:23,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044359514] [2022-11-20 10:35:23,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:23,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:24,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:24,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:24,156 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:24,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:24,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044359514] [2022-11-20 10:35:24,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044359514] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:24,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024227010] [2022-11-20 10:35:24,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:24,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:24,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:24,158 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:24,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:35:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:24,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:35:24,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:24,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:24,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024227010] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:24,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:24,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 20 [2022-11-20 10:35:24,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487209744] [2022-11-20 10:35:24,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:24,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 10:35:24,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:24,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 10:35:24,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:35:24,808 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand has 21 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:25,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:25,165 INFO L93 Difference]: Finished difference Result 127 states and 143 transitions. [2022-11-20 10:35:25,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 10:35:25,165 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 58 [2022-11-20 10:35:25,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:25,166 INFO L225 Difference]: With dead ends: 127 [2022-11-20 10:35:25,166 INFO L226 Difference]: Without dead ends: 126 [2022-11-20 10:35:25,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=793, Unknown=0, NotChecked=0, Total=992 [2022-11-20 10:35:25,168 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 82 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:25,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 352 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:35:25,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-20 10:35:25,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2022-11-20 10:35:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 114 states have (on average 1.131578947368421) internal successors, (129), 117 states have internal predecessors, (129), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:25,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 135 transitions. [2022-11-20 10:35:25,178 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 135 transitions. Word has length 58 [2022-11-20 10:35:25,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:25,179 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 135 transitions. [2022-11-20 10:35:25,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:25,179 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 135 transitions. [2022-11-20 10:35:25,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 10:35:25,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:25,181 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:25,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:25,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 10:35:25,389 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:25,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:25,390 INFO L85 PathProgramCache]: Analyzing trace with hash 25896124, now seen corresponding path program 1 times [2022-11-20 10:35:25,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:25,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272034058] [2022-11-20 10:35:25,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:25,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:25,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:25,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:25,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:25,665 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:25,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:25,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272034058] [2022-11-20 10:35:25,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272034058] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:25,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913950375] [2022-11-20 10:35:25,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:25,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:25,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:25,668 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:25,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:35:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:26,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:35:26,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:26,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:26,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913950375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:26,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:35:26,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 12 [2022-11-20 10:35:26,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77206272] [2022-11-20 10:35:26,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:26,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:35:26,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:26,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:35:26,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:35:26,204 INFO L87 Difference]: Start difference. First operand 122 states and 135 transitions. Second operand has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:26,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:26,347 INFO L93 Difference]: Finished difference Result 123 states and 135 transitions. [2022-11-20 10:35:26,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:35:26,348 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2022-11-20 10:35:26,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:26,349 INFO L225 Difference]: With dead ends: 123 [2022-11-20 10:35:26,349 INFO L226 Difference]: Without dead ends: 122 [2022-11-20 10:35:26,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:35:26,350 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 30 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:26,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 391 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:26,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-20 10:35:26,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 106. [2022-11-20 10:35:26,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 99 states have (on average 1.121212121212121) internal successors, (111), 101 states have internal predecessors, (111), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:26,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2022-11-20 10:35:26,359 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 59 [2022-11-20 10:35:26,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:26,359 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2022-11-20 10:35:26,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:26,359 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2022-11-20 10:35:26,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-20 10:35:26,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:26,360 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:26,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:26,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:26,561 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:26,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:26,562 INFO L85 PathProgramCache]: Analyzing trace with hash 167278408, now seen corresponding path program 1 times [2022-11-20 10:35:26,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:26,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096735414] [2022-11-20 10:35:26,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:26,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:26,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:26,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:26,871 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:26,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:26,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096735414] [2022-11-20 10:35:26,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096735414] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:26,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551401959] [2022-11-20 10:35:26,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:26,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:26,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:26,874 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:26,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 10:35:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:27,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 10:35:27,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:27,379 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:27,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:27,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551401959] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:27,606 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:27,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2022-11-20 10:35:27,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145024068] [2022-11-20 10:35:27,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:27,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 10:35:27,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:27,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 10:35:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2022-11-20 10:35:27,609 INFO L87 Difference]: Start difference. First operand 106 states and 117 transitions. Second operand has 25 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:28,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:28,095 INFO L93 Difference]: Finished difference Result 162 states and 179 transitions. [2022-11-20 10:35:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-20 10:35:28,096 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2022-11-20 10:35:28,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:28,097 INFO L225 Difference]: With dead ends: 162 [2022-11-20 10:35:28,097 INFO L226 Difference]: Without dead ends: 159 [2022-11-20 10:35:28,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=310, Invalid=1250, Unknown=0, NotChecked=0, Total=1560 [2022-11-20 10:35:28,099 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 136 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:28,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 639 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:35:28,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-20 10:35:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 119. [2022-11-20 10:35:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 112 states have (on average 1.125) internal successors, (126), 114 states have internal predecessors, (126), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 132 transitions. [2022-11-20 10:35:28,114 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 132 transitions. Word has length 64 [2022-11-20 10:35:28,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:28,114 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 132 transitions. [2022-11-20 10:35:28,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 132 transitions. [2022-11-20 10:35:28,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-20 10:35:28,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:28,116 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:28,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:28,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:28,325 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:28,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:28,326 INFO L85 PathProgramCache]: Analyzing trace with hash 570776572, now seen corresponding path program 1 times [2022-11-20 10:35:28,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:28,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849714502] [2022-11-20 10:35:28,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:28,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:28,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:28,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:28,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:28,707 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:28,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:28,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849714502] [2022-11-20 10:35:28,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849714502] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:28,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188212938] [2022-11-20 10:35:28,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:28,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:28,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:28,710 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:28,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 10:35:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:29,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 10:35:29,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:29,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:29,557 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:29,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188212938] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:29,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:29,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 28 [2022-11-20 10:35:29,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750150090] [2022-11-20 10:35:29,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:29,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-20 10:35:29,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:29,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-20 10:35:29,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=653, Unknown=0, NotChecked=0, Total=812 [2022-11-20 10:35:29,560 INFO L87 Difference]: Start difference. First operand 119 states and 132 transitions. Second operand has 29 states, 28 states have (on average 3.357142857142857) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:30,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:30,036 INFO L93 Difference]: Finished difference Result 178 states and 194 transitions. [2022-11-20 10:35:30,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-20 10:35:30,036 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.357142857142857) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 70 [2022-11-20 10:35:30,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:30,038 INFO L225 Difference]: With dead ends: 178 [2022-11-20 10:35:30,038 INFO L226 Difference]: Without dead ends: 177 [2022-11-20 10:35:30,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=368, Invalid=1524, Unknown=0, NotChecked=0, Total=1892 [2022-11-20 10:35:30,040 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 152 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:30,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 391 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:35:30,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-20 10:35:30,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 131. [2022-11-20 10:35:30,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 124 states have (on average 1.1129032258064515) internal successors, (138), 126 states have internal predecessors, (138), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:30,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 144 transitions. [2022-11-20 10:35:30,050 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 144 transitions. Word has length 70 [2022-11-20 10:35:30,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:30,051 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 144 transitions. [2022-11-20 10:35:30,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.357142857142857) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:30,051 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 144 transitions. [2022-11-20 10:35:30,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-20 10:35:30,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:30,052 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:30,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:30,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:30,260 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:30,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:30,260 INFO L85 PathProgramCache]: Analyzing trace with hash 318312808, now seen corresponding path program 1 times [2022-11-20 10:35:30,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:30,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15565902] [2022-11-20 10:35:30,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:30,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:30,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:30,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:30,702 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:30,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:30,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15565902] [2022-11-20 10:35:30,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15565902] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:30,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499800105] [2022-11-20 10:35:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:30,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:30,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:30,707 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:30,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 10:35:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:31,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 10:35:31,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:31,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:31,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499800105] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:31,715 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:31,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2022-11-20 10:35:31,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609253201] [2022-11-20 10:35:31,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:31,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-20 10:35:31,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:31,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-20 10:35:31,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2022-11-20 10:35:31,718 INFO L87 Difference]: Start difference. First operand 131 states and 144 transitions. Second operand has 33 states, 32 states have (on average 3.4375) internal successors, (110), 32 states have internal predecessors, (110), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:32,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:32,221 INFO L93 Difference]: Finished difference Result 225 states and 252 transitions. [2022-11-20 10:35:32,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 10:35:32,224 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.4375) internal successors, (110), 32 states have internal predecessors, (110), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 78 [2022-11-20 10:35:32,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:32,226 INFO L225 Difference]: With dead ends: 225 [2022-11-20 10:35:32,226 INFO L226 Difference]: Without dead ends: 224 [2022-11-20 10:35:32,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2022-11-20 10:35:32,227 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 238 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:32,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 391 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:35:32,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-11-20 10:35:32,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 176. [2022-11-20 10:35:32,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 169 states have (on average 1.1242603550295858) internal successors, (190), 171 states have internal predecessors, (190), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:32,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 196 transitions. [2022-11-20 10:35:32,238 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 196 transitions. Word has length 78 [2022-11-20 10:35:32,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:32,239 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 196 transitions. [2022-11-20 10:35:32,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.4375) internal successors, (110), 32 states have internal predecessors, (110), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:32,239 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 196 transitions. [2022-11-20 10:35:32,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-20 10:35:32,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:32,240 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:35:32,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:32,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-20 10:35:32,463 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:32,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:32,464 INFO L85 PathProgramCache]: Analyzing trace with hash 111238212, now seen corresponding path program 2 times [2022-11-20 10:35:32,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:32,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566686563] [2022-11-20 10:35:32,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:32,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:32,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:32,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:32,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566686563] [2022-11-20 10:35:32,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566686563] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:32,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312626353] [2022-11-20 10:35:32,905 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:35:32,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:32,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:32,907 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:32,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 10:35:33,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:35:33,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:33,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 10:35:33,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:33,710 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:33,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:34,089 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:34,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312626353] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:34,089 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:34,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 36 [2022-11-20 10:35:34,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059247811] [2022-11-20 10:35:34,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:34,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-20 10:35:34,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:34,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-20 10:35:34,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2022-11-20 10:35:34,092 INFO L87 Difference]: Start difference. First operand 176 states and 196 transitions. Second operand has 37 states, 36 states have (on average 3.2777777777777777) internal successors, (118), 36 states have internal predecessors, (118), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:34,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:34,834 INFO L93 Difference]: Finished difference Result 254 states and 278 transitions. [2022-11-20 10:35:34,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-20 10:35:34,835 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.2777777777777777) internal successors, (118), 36 states have internal predecessors, (118), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 82 [2022-11-20 10:35:34,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:34,837 INFO L225 Difference]: With dead ends: 254 [2022-11-20 10:35:34,837 INFO L226 Difference]: Without dead ends: 253 [2022-11-20 10:35:34,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=628, Invalid=2678, Unknown=0, NotChecked=0, Total=3306 [2022-11-20 10:35:34,839 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 233 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:34,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 532 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:35:34,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-11-20 10:35:34,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 184. [2022-11-20 10:35:34,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 177 states have (on average 1.11864406779661) internal successors, (198), 179 states have internal predecessors, (198), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:34,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 204 transitions. [2022-11-20 10:35:34,852 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 204 transitions. Word has length 82 [2022-11-20 10:35:34,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:34,853 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 204 transitions. [2022-11-20 10:35:34,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.2777777777777777) internal successors, (118), 36 states have internal predecessors, (118), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:34,853 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 204 transitions. [2022-11-20 10:35:34,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 10:35:34,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:34,855 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:34,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-11-20 10:35:35,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-20 10:35:35,063 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:35,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:35,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1081522894, now seen corresponding path program 2 times [2022-11-20 10:35:35,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:35,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583919320] [2022-11-20 10:35:35,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:35,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:35,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:35,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:35,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:35,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:35,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583919320] [2022-11-20 10:35:35,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583919320] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:35,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280700012] [2022-11-20 10:35:35,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:35:35,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:35,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:35,617 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:35,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 10:35:36,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:35:36,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:36,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 10:35:36,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:36,362 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:36,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:36,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280700012] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:36,817 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:36,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 36 [2022-11-20 10:35:36,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108685140] [2022-11-20 10:35:36,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:36,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-20 10:35:36,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:36,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-20 10:35:36,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-11-20 10:35:36,822 INFO L87 Difference]: Start difference. First operand 184 states and 204 transitions. Second operand has 37 states, 36 states have (on average 3.388888888888889) internal successors, (122), 36 states have internal predecessors, (122), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:37,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:37,604 INFO L93 Difference]: Finished difference Result 250 states and 278 transitions. [2022-11-20 10:35:37,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-20 10:35:37,606 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.388888888888889) internal successors, (122), 36 states have internal predecessors, (122), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 84 [2022-11-20 10:35:37,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:37,608 INFO L225 Difference]: With dead ends: 250 [2022-11-20 10:35:37,609 INFO L226 Difference]: Without dead ends: 249 [2022-11-20 10:35:37,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 956 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=918, Invalid=3242, Unknown=0, NotChecked=0, Total=4160 [2022-11-20 10:35:37,611 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 326 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:37,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 386 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:35:37,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-11-20 10:35:37,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 190. [2022-11-20 10:35:37,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 183 states have (on average 1.1202185792349726) internal successors, (205), 185 states have internal predecessors, (205), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:37,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 211 transitions. [2022-11-20 10:35:37,626 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 211 transitions. Word has length 84 [2022-11-20 10:35:37,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:37,626 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 211 transitions. [2022-11-20 10:35:37,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.388888888888889) internal successors, (122), 36 states have internal predecessors, (122), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:37,627 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 211 transitions. [2022-11-20 10:35:37,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-20 10:35:37,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:37,628 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:37,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:37,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:37,841 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:37,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:37,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1570966248, now seen corresponding path program 2 times [2022-11-20 10:35:37,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:37,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411735377] [2022-11-20 10:35:37,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:37,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:38,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:38,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:38,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:38,348 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:38,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:38,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411735377] [2022-11-20 10:35:38,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411735377] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:38,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472934785] [2022-11-20 10:35:38,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:35:38,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:38,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:38,350 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:38,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 10:35:38,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:35:38,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:38,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-20 10:35:38,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:39,094 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:39,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:39,588 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:39,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472934785] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:39,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:39,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 40 [2022-11-20 10:35:39,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859313218] [2022-11-20 10:35:39,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:39,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-20 10:35:39,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:39,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-20 10:35:39,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1283, Unknown=0, NotChecked=0, Total=1640 [2022-11-20 10:35:39,592 INFO L87 Difference]: Start difference. First operand 190 states and 211 transitions. Second operand has 41 states, 40 states have (on average 3.25) internal successors, (130), 40 states have internal predecessors, (130), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:40,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:40,525 INFO L93 Difference]: Finished difference Result 265 states and 288 transitions. [2022-11-20 10:35:40,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-20 10:35:40,526 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 3.25) internal successors, (130), 40 states have internal predecessors, (130), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 88 [2022-11-20 10:35:40,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:40,527 INFO L225 Difference]: With dead ends: 265 [2022-11-20 10:35:40,527 INFO L226 Difference]: Without dead ends: 264 [2022-11-20 10:35:40,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1038, Invalid=4074, Unknown=0, NotChecked=0, Total=5112 [2022-11-20 10:35:40,530 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 244 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:40,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 658 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:35:40,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-11-20 10:35:40,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 195. [2022-11-20 10:35:40,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 188 states have (on average 1.1170212765957446) internal successors, (210), 190 states have internal predecessors, (210), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:40,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 216 transitions. [2022-11-20 10:35:40,543 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 216 transitions. Word has length 88 [2022-11-20 10:35:40,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:40,543 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 216 transitions. [2022-11-20 10:35:40,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 3.25) internal successors, (130), 40 states have internal predecessors, (130), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:40,544 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 216 transitions. [2022-11-20 10:35:40,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 10:35:40,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:40,545 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:40,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:40,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-20 10:35:40,754 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:40,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:40,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1128286068, now seen corresponding path program 3 times [2022-11-20 10:35:40,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:40,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834270374] [2022-11-20 10:35:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:40,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:41,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:41,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834270374] [2022-11-20 10:35:41,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834270374] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:41,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485233305] [2022-11-20 10:35:41,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:35:41,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:41,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:41,435 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:41,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-20 10:35:43,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-20 10:35:43,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:43,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 10:35:43,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:44,095 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-20 10:35:44,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:44,364 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-20 10:35:44,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485233305] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:44,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:44,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 9, 9] total 36 [2022-11-20 10:35:44,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192320288] [2022-11-20 10:35:44,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:44,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-20 10:35:44,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:44,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-20 10:35:44,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1086, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 10:35:44,368 INFO L87 Difference]: Start difference. First operand 195 states and 216 transitions. Second operand has 36 states, 36 states have (on average 3.5) internal successors, (126), 35 states have internal predecessors, (126), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 10:35:45,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:45,806 INFO L93 Difference]: Finished difference Result 468 states and 508 transitions. [2022-11-20 10:35:45,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-20 10:35:45,807 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.5) internal successors, (126), 35 states have internal predecessors, (126), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 94 [2022-11-20 10:35:45,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:45,809 INFO L225 Difference]: With dead ends: 468 [2022-11-20 10:35:45,810 INFO L226 Difference]: Without dead ends: 310 [2022-11-20 10:35:45,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=944, Invalid=4606, Unknown=0, NotChecked=0, Total=5550 [2022-11-20 10:35:45,816 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 468 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:45,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 748 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:35:45,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-20 10:35:45,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 212. [2022-11-20 10:35:45,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 205 states have (on average 1.1219512195121952) internal successors, (230), 207 states have internal predecessors, (230), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:45,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 236 transitions. [2022-11-20 10:35:45,836 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 236 transitions. Word has length 94 [2022-11-20 10:35:45,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:45,837 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 236 transitions. [2022-11-20 10:35:45,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.5) internal successors, (126), 35 states have internal predecessors, (126), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 10:35:45,837 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 236 transitions. [2022-11-20 10:35:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-20 10:35:45,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:45,839 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:45,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:46,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-20 10:35:46,047 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:46,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:46,048 INFO L85 PathProgramCache]: Analyzing trace with hash 659862784, now seen corresponding path program 2 times [2022-11-20 10:35:46,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:46,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498529300] [2022-11-20 10:35:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:46,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,683 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:46,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:46,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498529300] [2022-11-20 10:35:46,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498529300] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:46,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412421350] [2022-11-20 10:35:46,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:35:46,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:46,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:46,697 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:46,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-20 10:35:47,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:35:47,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:47,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 10:35:47,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:47,541 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:47,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:48,203 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:48,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412421350] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:48,203 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:48,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 23] total 48 [2022-11-20 10:35:48,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958996624] [2022-11-20 10:35:48,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:48,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-20 10:35:48,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:48,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-20 10:35:48,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=505, Invalid=1847, Unknown=0, NotChecked=0, Total=2352 [2022-11-20 10:35:48,206 INFO L87 Difference]: Start difference. First operand 212 states and 236 transitions. Second operand has 49 states, 48 states have (on average 3.2083333333333335) internal successors, (154), 48 states have internal predecessors, (154), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:48,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:48,988 INFO L93 Difference]: Finished difference Result 372 states and 405 transitions. [2022-11-20 10:35:48,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-20 10:35:48,989 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 3.2083333333333335) internal successors, (154), 48 states have internal predecessors, (154), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 100 [2022-11-20 10:35:48,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:48,991 INFO L225 Difference]: With dead ends: 372 [2022-11-20 10:35:48,991 INFO L226 Difference]: Without dead ends: 371 [2022-11-20 10:35:48,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1186, Invalid=3926, Unknown=0, NotChecked=0, Total=5112 [2022-11-20 10:35:48,994 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 245 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:48,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 617 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:35:48,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-11-20 10:35:49,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 280. [2022-11-20 10:35:49,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 273 states have (on average 1.0915750915750915) internal successors, (298), 275 states have internal predecessors, (298), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:49,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 304 transitions. [2022-11-20 10:35:49,018 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 304 transitions. Word has length 100 [2022-11-20 10:35:49,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:49,019 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 304 transitions. [2022-11-20 10:35:49,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 3.2083333333333335) internal successors, (154), 48 states have internal predecessors, (154), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:35:49,019 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 304 transitions. [2022-11-20 10:35:49,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-20 10:35:49,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:49,021 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:49,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:49,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-20 10:35:49,229 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:49,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:49,230 INFO L85 PathProgramCache]: Analyzing trace with hash -374105901, now seen corresponding path program 4 times [2022-11-20 10:35:49,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:49,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271045284] [2022-11-20 10:35:49,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:49,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:49,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:49,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:49,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-20 10:35:49,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:49,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271045284] [2022-11-20 10:35:49,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271045284] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:49,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045997857] [2022-11-20 10:35:49,586 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 10:35:49,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:49,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:49,588 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:49,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-20 10:35:51,788 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 10:35:51,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:51,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 10:35:51,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:52,195 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 10:35:52,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:52,914 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 10:35:52,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045997857] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:52,915 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:52,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 23, 23] total 51 [2022-11-20 10:35:52,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917238519] [2022-11-20 10:35:52,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:52,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-11-20 10:35:52,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:52,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-11-20 10:35:52,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=2125, Unknown=0, NotChecked=0, Total=2550 [2022-11-20 10:35:52,918 INFO L87 Difference]: Start difference. First operand 280 states and 304 transitions. Second operand has 51 states, 51 states have (on average 3.7254901960784315) internal successors, (190), 50 states have internal predecessors, (190), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-20 10:35:54,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:54,052 INFO L93 Difference]: Finished difference Result 396 states and 420 transitions. [2022-11-20 10:35:54,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-20 10:35:54,053 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 3.7254901960784315) internal successors, (190), 50 states have internal predecessors, (190), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 103 [2022-11-20 10:35:54,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:54,054 INFO L225 Difference]: With dead ends: 396 [2022-11-20 10:35:54,054 INFO L226 Difference]: Without dead ends: 153 [2022-11-20 10:35:54,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1480 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1259, Invalid=5547, Unknown=0, NotChecked=0, Total=6806 [2022-11-20 10:35:54,057 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 333 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:54,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 581 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:35:54,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-20 10:35:54,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-11-20 10:35:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.027027027027027) internal successors, (152), 148 states have internal predecessors, (152), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:35:54,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 158 transitions. [2022-11-20 10:35:54,078 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 158 transitions. Word has length 103 [2022-11-20 10:35:54,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:54,078 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 158 transitions. [2022-11-20 10:35:54,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.7254901960784315) internal successors, (190), 50 states have internal predecessors, (190), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-20 10:35:54,079 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 158 transitions. [2022-11-20 10:35:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-20 10:35:54,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:54,081 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:54,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:54,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-20 10:35:54,293 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:35:54,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:54,293 INFO L85 PathProgramCache]: Analyzing trace with hash 805420872, now seen corresponding path program 3 times [2022-11-20 10:35:54,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:54,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100083426] [2022-11-20 10:35:54,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:54,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:55,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:55,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:35:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:55,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:35:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 0 proven. 972 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:35:55,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:55,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100083426] [2022-11-20 10:35:55,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100083426] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:55,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104026023] [2022-11-20 10:35:55,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:35:55,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:55,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:55,891 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:55,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a6bd5c-1e77-4777-b35f-932a6a94e35a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-20 10:36:01,281 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-11-20 10:36:01,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:36:01,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 209 conjunts are in the unsatisfiable core [2022-11-20 10:36:01,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:36:01,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:36:01,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-20 10:36:01,564 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 10:36:01,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-20 10:36:01,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 10:36:01,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:01,929 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 10:36:01,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-20 10:36:02,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 10:36:02,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 10:36:02,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:36:02,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:36:02,596 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-20 10:36:02,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 65 [2022-11-20 10:36:02,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 29 [2022-11-20 10:36:03,136 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-20 10:36:03,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 122 treesize of output 48 [2022-11-20 10:36:03,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:03,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-20 10:36:03,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:03,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-20 10:36:03,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:03,551 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-11-20 10:36:03,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 98 [2022-11-20 10:36:03,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:03,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:03,607 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-20 10:36:03,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 33 [2022-11-20 10:36:03,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:03,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:03,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2022-11-20 10:36:04,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:04,728 INFO L321 Elim1Store]: treesize reduction 199, result has 13.9 percent of original size [2022-11-20 10:36:04,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 392 treesize of output 239 [2022-11-20 10:36:28,463 WARN L233 SmtUtils]: Spent 23.57s on a formula simplification. DAG size of input: 531 DAG size of output: 43 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-20 10:36:28,463 INFO L321 Elim1Store]: treesize reduction 2968, result has 2.0 percent of original size [2022-11-20 10:36:28,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 12 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 24 new quantified variables, introduced 99 case distinctions, treesize of input 340686 treesize of output 158354 [2022-11-20 10:36:32,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:32,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:32,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:32,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:32,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:36:32,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:32,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:32,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:32,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:36:32,641 INFO L217 Elim1Store]: Index analysis took 125 ms [2022-11-20 10:36:48,654 WARN L233 SmtUtils]: Spent 16.00s on a formula simplification. DAG size of input: 301 DAG size of output: 21 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-20 10:36:48,654 INFO L321 Elim1Store]: treesize reduction 2049, result has 1.7 percent of original size [2022-11-20 10:36:48,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 44 case distinctions, treesize of input 27625 treesize of output 22038 [2022-11-20 10:36:54,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:54,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:54,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:54,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:54,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:54,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:54,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:54,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:36:54,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:55,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:36:55,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:55,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:55,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:55,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:55,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:55,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:55,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:55,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:55,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:55,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:36:55,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:36:55,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:36:56,751 INFO L217 Elim1Store]: Index analysis took 1399 ms [2022-11-20 10:36:56,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:36:57,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:39:39,994 WARN L233 SmtUtils]: Spent 2.71m on a formula simplification. DAG size of input: 261 DAG size of output: 42 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-20 10:39:39,994 INFO L321 Elim1Store]: treesize reduction 2166, result has 5.0 percent of original size [2022-11-20 10:39:40,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 12 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 13 new quantified variables, introduced 60 case distinctions, treesize of input 50207508432 treesize of output 27591671437