./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5ecb51c2655999223e2701919887f64497e4c0c5e2f563d3d5ecc5c1480b1b8e --- 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-5e519f3 [2022-11-02 21:04:28,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:04:28,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:04:28,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:04:28,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:04:28,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:04:28,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:04:28,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:04:28,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:04:28,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:04:28,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:04:28,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:04:28,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:04:28,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:04:28,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:04:28,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:04:28,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:04:28,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:04:28,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:04:28,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:04:28,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:04:28,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:04:28,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:04:28,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:04:28,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:04:28,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:04:28,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:04:28,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:04:28,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:04:28,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:04:28,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:04:28,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:04:28,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:04:28,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:04:28,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:04:28,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:04:28,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:04:28,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:04:28,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:04:28,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:04:28,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:04:28,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-02 21:04:28,252 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:04:28,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:04:28,253 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:04:28,253 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:04:28,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:04:28,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:04:28,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:04:28,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:04:28,256 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:04:28,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:04:28,258 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:04:28,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:04:28,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:04:28,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:04:28,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:04:28,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:04:28,259 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 21:04:28,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:04:28,260 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:04:28,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:04:28,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:04:28,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:04:28,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:04:28,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:04:28,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:04:28,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:04:28,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:04:28,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:04:28,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:04:28,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:04:28,264 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_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ecb51c2655999223e2701919887f64497e4c0c5e2f563d3d5ecc5c1480b1b8e [2022-11-02 21:04:28,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:04:28,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:04:28,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:04:28,715 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:04:28,716 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:04:28,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.c [2022-11-02 21:04:28,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/data/27a4b67c6/0f629d6cd1c848b4b94c1d84bc379c56/FLAGc6090b420 [2022-11-02 21:04:29,352 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:04:29,353 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.c [2022-11-02 21:04:29,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/data/27a4b67c6/0f629d6cd1c848b4b94c1d84bc379c56/FLAGc6090b420 [2022-11-02 21:04:29,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/data/27a4b67c6/0f629d6cd1c848b4b94c1d84bc379c56 [2022-11-02 21:04:29,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:04:29,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:04:29,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:29,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:04:29,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:04:29,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:29" (1/1) ... [2022-11-02 21:04:29,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67be6814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:29, skipping insertion in model container [2022-11-02 21:04:29,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:29" (1/1) ... [2022-11-02 21:04:29,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:04:29,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:04:30,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:30,053 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:04:30,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:30,087 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:04:30,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30 WrapperNode [2022-11-02 21:04:30,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:30,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:30,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:04:30,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:04:30,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (1/1) ... [2022-11-02 21:04:30,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (1/1) ... [2022-11-02 21:04:30,127 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-02 21:04:30,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:30,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:04:30,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:04:30,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:04:30,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (1/1) ... [2022-11-02 21:04:30,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (1/1) ... [2022-11-02 21:04:30,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (1/1) ... [2022-11-02 21:04:30,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (1/1) ... [2022-11-02 21:04:30,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (1/1) ... [2022-11-02 21:04:30,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (1/1) ... [2022-11-02 21:04:30,145 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (1/1) ... [2022-11-02 21:04:30,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (1/1) ... [2022-11-02 21:04:30,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:04:30,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:04:30,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:04:30,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:04:30,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (1/1) ... [2022-11-02 21:04:30,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:04:30,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:30,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:30,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:04:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:04:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:04:30,302 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:04:30,304 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:04:30,478 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:04:30,487 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:04:30,487 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:04:30,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:30 BoogieIcfgContainer [2022-11-02 21:04:30,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:04:30,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:04:30,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:04:30,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:04:30,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:04:29" (1/3) ... [2022-11-02 21:04:30,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5001a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:30, skipping insertion in model container [2022-11-02 21:04:30,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:30" (2/3) ... [2022-11-02 21:04:30,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5001a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:30, skipping insertion in model container [2022-11-02 21:04:30,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:30" (3/3) ... [2022-11-02 21:04:30,502 INFO L112 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.c [2022-11-02 21:04:30,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:04:30,525 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-02 21:04:30,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:04:30,600 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@67c24b1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:04:30,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-02 21:04:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:30,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-02 21:04:30,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:30,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-02 21:04:30,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:30,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-02 21:04:30,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:30,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906028522] [2022-11-02 21:04:30,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:30,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:30,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:30,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:30,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906028522] [2022-11-02 21:04:30,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906028522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:30,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:30,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:30,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544817798] [2022-11-02 21:04:30,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:30,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:30,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:30,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:30,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:30,948 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:30,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:30,984 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-02 21:04:30,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:30,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-02 21:04:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:30,997 INFO L225 Difference]: With dead ends: 31 [2022-11-02 21:04:30,997 INFO L226 Difference]: Without dead ends: 18 [2022-11-02 21:04:31,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:31,005 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:31,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 30 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:04:31,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-02 21:04:31,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-11-02 21:04:31,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-02 21:04:31,045 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2022-11-02 21:04:31,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:31,045 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-02 21:04:31,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,046 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-02 21:04:31,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 21:04:31,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:31,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 21:04:31,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:04:31,048 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:31,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:31,049 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-11-02 21:04:31,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:31,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896773930] [2022-11-02 21:04:31,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:31,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:31,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:31,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896773930] [2022-11-02 21:04:31,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896773930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:31,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:31,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:31,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649984535] [2022-11-02 21:04:31,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:31,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:31,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:31,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:31,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:31,088 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:31,098 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-02 21:04:31,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:31,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 21:04:31,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:31,099 INFO L225 Difference]: With dead ends: 17 [2022-11-02 21:04:31,100 INFO L226 Difference]: Without dead ends: 16 [2022-11-02 21:04:31,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:31,102 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:31,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:04:31,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-02 21:04:31,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-02 21:04:31,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-02 21:04:31,108 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2022-11-02 21:04:31,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:31,108 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-02 21:04:31,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,109 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-02 21:04:31,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 21:04:31,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:31,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 21:04:31,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:04:31,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:31,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:31,111 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2022-11-02 21:04:31,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:31,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106944463] [2022-11-02 21:04:31,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:31,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:31,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:31,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:31,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106944463] [2022-11-02 21:04:31,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106944463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:31,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:31,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:31,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586016018] [2022-11-02 21:04:31,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:31,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:31,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:31,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:31,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:31,186 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:31,193 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-02 21:04:31,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:31,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-02 21:04:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:31,207 INFO L225 Difference]: With dead ends: 16 [2022-11-02 21:04:31,207 INFO L226 Difference]: Without dead ends: 15 [2022-11-02 21:04:31,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:31,210 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:31,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:04:31,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-02 21:04:31,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-02 21:04:31,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-02 21:04:31,215 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2022-11-02 21:04:31,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:31,215 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-02 21:04:31,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,216 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-02 21:04:31,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 21:04:31,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:31,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:31,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:04:31,217 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:31,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:31,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2022-11-02 21:04:31,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:31,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028957028] [2022-11-02 21:04:31,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:31,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:31,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:31,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:31,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028957028] [2022-11-02 21:04:31,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028957028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:31,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:31,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:31,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172729313] [2022-11-02 21:04:31,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:31,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:31,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:31,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:31,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:31,289 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:31,303 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-02 21:04:31,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:31,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-02 21:04:31,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:31,307 INFO L225 Difference]: With dead ends: 19 [2022-11-02 21:04:31,307 INFO L226 Difference]: Without dead ends: 18 [2022-11-02 21:04:31,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:31,309 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:31,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:04:31,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-02 21:04:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-02 21:04:31,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-02 21:04:31,314 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2022-11-02 21:04:31,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:31,314 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-02 21:04:31,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,314 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-02 21:04:31,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 21:04:31,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:31,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:31,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:04:31,316 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:31,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:31,316 INFO L85 PathProgramCache]: Analyzing trace with hash 294943144, now seen corresponding path program 1 times [2022-11-02 21:04:31,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:31,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152640904] [2022-11-02 21:04:31,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:31,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:31,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:31,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152640904] [2022-11-02 21:04:31,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152640904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:31,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:31,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:31,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400743118] [2022-11-02 21:04:31,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:31,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:31,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:31,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:31,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:31,389 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:31,399 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-02 21:04:31,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:31,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-02 21:04:31,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:31,401 INFO L225 Difference]: With dead ends: 18 [2022-11-02 21:04:31,401 INFO L226 Difference]: Without dead ends: 17 [2022-11-02 21:04:31,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:31,403 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:31,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:04:31,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-02 21:04:31,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-02 21:04:31,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-02 21:04:31,409 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2022-11-02 21:04:31,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:31,409 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-02 21:04:31,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,410 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-02 21:04:31,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 21:04:31,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:31,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:31,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:04:31,411 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:31,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:31,412 INFO L85 PathProgramCache]: Analyzing trace with hash 553302925, now seen corresponding path program 1 times [2022-11-02 21:04:31,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:31,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612774840] [2022-11-02 21:04:31,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:31,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:31,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:31,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612774840] [2022-11-02 21:04:31,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612774840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:31,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:31,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:31,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228655546] [2022-11-02 21:04:31,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:31,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:31,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:31,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:31,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:31,450 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:31,459 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-02 21:04:31,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:31,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 21:04:31,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:31,461 INFO L225 Difference]: With dead ends: 17 [2022-11-02 21:04:31,461 INFO L226 Difference]: Without dead ends: 16 [2022-11-02 21:04:31,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:31,463 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:31,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:04:31,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-02 21:04:31,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-02 21:04:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-02 21:04:31,469 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2022-11-02 21:04:31,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:31,469 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-02 21:04:31,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,470 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-02 21:04:31,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 21:04:31,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:31,471 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:31,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:04:31,471 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:31,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:31,472 INFO L85 PathProgramCache]: Analyzing trace with hash -851832465, now seen corresponding path program 1 times [2022-11-02 21:04:31,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:31,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986157280] [2022-11-02 21:04:31,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:31,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:31,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:31,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986157280] [2022-11-02 21:04:31,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986157280] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:04:31,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69774056] [2022-11-02 21:04:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:31,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:31,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:31,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:04:31,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:04:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:31,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:04:31,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:31,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:31,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:04:31,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:31,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69774056] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:04:31,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:04:31,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-02 21:04:31,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851287299] [2022-11-02 21:04:31,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:04:31,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:04:31,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:04:31,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:31,708 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:31,737 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-11-02 21:04:31,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:04:31,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-02 21:04:31,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:31,738 INFO L225 Difference]: With dead ends: 37 [2022-11-02 21:04:31,739 INFO L226 Difference]: Without dead ends: 36 [2022-11-02 21:04:31,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:31,740 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:31,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 36 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:04:31,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-02 21:04:31,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2022-11-02 21:04:31,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-11-02 21:04:31,747 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 11 [2022-11-02 21:04:31,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:31,748 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-11-02 21:04:31,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,748 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-11-02 21:04:31,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 21:04:31,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:31,749 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:31,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-02 21:04:31,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:31,975 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:31,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:31,976 INFO L85 PathProgramCache]: Analyzing trace with hash 2020832000, now seen corresponding path program 1 times [2022-11-02 21:04:31,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:31,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621540127] [2022-11-02 21:04:31,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:31,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:32,063 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:32,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:32,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621540127] [2022-11-02 21:04:32,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621540127] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:04:32,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384346548] [2022-11-02 21:04:32,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:32,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:32,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:32,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:04:32,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:04:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:32,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:04:32,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:32,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:04:32,217 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:32,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384346548] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:04:32,218 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:04:32,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-02 21:04:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141279857] [2022-11-02 21:04:32,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:04:32,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:04:32,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:32,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:04:32,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:32,225 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:32,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:32,276 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-11-02 21:04:32,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:04:32,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-02 21:04:32,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:32,277 INFO L225 Difference]: With dead ends: 38 [2022-11-02 21:04:32,277 INFO L226 Difference]: Without dead ends: 37 [2022-11-02 21:04:32,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:32,279 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:32,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:04:32,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-02 21:04:32,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-02 21:04:32,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 36 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2022-11-02 21:04:32,286 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 14 [2022-11-02 21:04:32,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:32,286 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2022-11-02 21:04:32,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:32,287 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2022-11-02 21:04:32,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 21:04:32,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:32,288 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-11-02 21:04:32,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:32,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:32,489 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:32,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:32,490 INFO L85 PathProgramCache]: Analyzing trace with hash 85812132, now seen corresponding path program 2 times [2022-11-02 21:04:32,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:32,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032045145] [2022-11-02 21:04:32,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:32,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:32,765 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:32,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:32,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032045145] [2022-11-02 21:04:32,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032045145] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:04:32,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131281662] [2022-11-02 21:04:32,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:04:32,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:32,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:32,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:04:32,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:04:32,818 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 21:04:32,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:04:32,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:04:32,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:32,888 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:32,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:04:33,019 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:33,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131281662] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:04:33,020 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:04:33,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-02 21:04:33,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542719583] [2022-11-02 21:04:33,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:04:33,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:04:33,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:33,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:04:33,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:04:33,023 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:33,097 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2022-11-02 21:04:33,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:04:33,097 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-02 21:04:33,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:33,099 INFO L225 Difference]: With dead ends: 82 [2022-11-02 21:04:33,099 INFO L226 Difference]: Without dead ends: 81 [2022-11-02 21:04:33,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:04:33,100 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 36 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:33,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 70 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:33,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-02 21:04:33,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2022-11-02 21:04:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 75 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2022-11-02 21:04:33,113 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 32 [2022-11-02 21:04:33,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:33,113 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2022-11-02 21:04:33,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,114 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2022-11-02 21:04:33,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 21:04:33,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:33,115 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2022-11-02 21:04:33,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:33,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-02 21:04:33,327 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:33,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:33,327 INFO L85 PathProgramCache]: Analyzing trace with hash 923728043, now seen corresponding path program 2 times [2022-11-02 21:04:33,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:33,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932413405] [2022-11-02 21:04:33,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:33,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:33,490 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:33,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:33,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932413405] [2022-11-02 21:04:33,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932413405] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:04:33,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643207268] [2022-11-02 21:04:33,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:04:33,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:33,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:33,493 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:04:33,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 21:04:33,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 21:04:33,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:04:33,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:04:33,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:33,666 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:33,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:04:33,790 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:33,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643207268] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:04:33,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:04:33,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-02 21:04:33,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606587216] [2022-11-02 21:04:33,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:04:33,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:04:33,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:33,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:04:33,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:04:33,793 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:33,880 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2022-11-02 21:04:33,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:04:33,881 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-02 21:04:33,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:33,882 INFO L225 Difference]: With dead ends: 80 [2022-11-02 21:04:33,882 INFO L226 Difference]: Without dead ends: 79 [2022-11-02 21:04:33,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:04:33,884 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:33,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 67 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:33,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-02 21:04:33,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-11-02 21:04:33,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 77 states have (on average 1.025974025974026) internal successors, (79), 78 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2022-11-02 21:04:33,895 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 35 [2022-11-02 21:04:33,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:33,896 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2022-11-02 21:04:33,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,896 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2022-11-02 21:04:33,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-02 21:04:33,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:33,899 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2022-11-02 21:04:33,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:34,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-02 21:04:34,115 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:34,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:34,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1891218564, now seen corresponding path program 3 times [2022-11-02 21:04:34,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:34,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611164257] [2022-11-02 21:04:34,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:34,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:34,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:34,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611164257] [2022-11-02 21:04:34,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611164257] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:04:34,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130817235] [2022-11-02 21:04:34,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 21:04:34,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:34,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:34,468 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:04:34,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 21:04:34,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-02 21:04:34,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:04:34,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 21:04:34,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:34,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:04:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:35,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130817235] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:04:35,246 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:04:35,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-02 21:04:35,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55596591] [2022-11-02 21:04:35,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:04:35,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 21:04:35,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:35,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 21:04:35,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 21:04:35,248 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:35,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:35,410 INFO L93 Difference]: Finished difference Result 172 states and 183 transitions. [2022-11-02 21:04:35,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 21:04:35,411 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-11-02 21:04:35,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:35,413 INFO L225 Difference]: With dead ends: 172 [2022-11-02 21:04:35,413 INFO L226 Difference]: Without dead ends: 171 [2022-11-02 21:04:35,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 21:04:35,414 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 95 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:35,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 139 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:35,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-02 21:04:35,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 160. [2022-11-02 21:04:35,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 158 states have (on average 1.0822784810126582) internal successors, (171), 159 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:35,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 171 transitions. [2022-11-02 21:04:35,433 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 171 transitions. Word has length 74 [2022-11-02 21:04:35,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:35,433 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 171 transitions. [2022-11-02 21:04:35,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:35,434 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 171 transitions. [2022-11-02 21:04:35,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-02 21:04:35,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:35,435 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 1, 1, 1] [2022-11-02 21:04:35,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:35,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:35,652 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:35,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:35,652 INFO L85 PathProgramCache]: Analyzing trace with hash -88704053, now seen corresponding path program 3 times [2022-11-02 21:04:35,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:35,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49233779] [2022-11-02 21:04:35,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:35,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:35,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:35,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49233779] [2022-11-02 21:04:35,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49233779] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:04:35,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363548995] [2022-11-02 21:04:35,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 21:04:35,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:35,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:35,958 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:04:35,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 21:04:36,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-02 21:04:36,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:04:36,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 21:04:36,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:36,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:04:36,532 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:36,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363548995] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:04:36,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:04:36,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-02 21:04:36,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824025231] [2022-11-02 21:04:36,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:04:36,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 21:04:36,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:36,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 21:04:36,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 21:04:36,536 INFO L87 Difference]: Start difference. First operand 160 states and 171 transitions. Second operand has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:36,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:36,650 INFO L93 Difference]: Finished difference Result 164 states and 175 transitions. [2022-11-02 21:04:36,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 21:04:36,651 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-02 21:04:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:36,653 INFO L225 Difference]: With dead ends: 164 [2022-11-02 21:04:36,654 INFO L226 Difference]: Without dead ends: 163 [2022-11-02 21:04:36,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 21:04:36,658 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:36,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 127 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:36,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-02 21:04:36,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-02 21:04:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 161 states have (on average 1.0124223602484472) internal successors, (163), 162 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:36,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 163 transitions. [2022-11-02 21:04:36,704 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 163 transitions. Word has length 77 [2022-11-02 21:04:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:36,705 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 163 transitions. [2022-11-02 21:04:36,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 163 transitions. [2022-11-02 21:04:36,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-02 21:04:36,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:36,716 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1, 1] [2022-11-02 21:04:36,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:36,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-02 21:04:36,934 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:36,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:36,935 INFO L85 PathProgramCache]: Analyzing trace with hash 468127300, now seen corresponding path program 4 times [2022-11-02 21:04:36,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:36,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574715116] [2022-11-02 21:04:36,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:36,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:37,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:37,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:37,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574715116] [2022-11-02 21:04:37,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574715116] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:04:37,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214902994] [2022-11-02 21:04:37,895 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 21:04:37,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:37,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:37,896 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:04:37,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 21:04:37,989 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 21:04:37,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:04:37,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-02 21:04:37,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:38,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:38,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:04:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:39,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214902994] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:04:39,520 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:04:39,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-02 21:04:39,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742914689] [2022-11-02 21:04:39,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:04:39,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-02 21:04:39,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:39,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-02 21:04:39,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 21:04:39,524 INFO L87 Difference]: Start difference. First operand 163 states and 163 transitions. Second operand has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:39,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:39,816 INFO L93 Difference]: Finished difference Result 352 states and 375 transitions. [2022-11-02 21:04:39,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-02 21:04:39,817 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2022-11-02 21:04:39,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:39,820 INFO L225 Difference]: With dead ends: 352 [2022-11-02 21:04:39,820 INFO L226 Difference]: Without dead ends: 351 [2022-11-02 21:04:39,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 21:04:39,822 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 188 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:39,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 271 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:39,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-11-02 21:04:39,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 328. [2022-11-02 21:04:39,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 326 states have (on average 1.0766871165644172) internal successors, (351), 327 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:39,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 351 transitions. [2022-11-02 21:04:39,844 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 351 transitions. Word has length 158 [2022-11-02 21:04:39,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:39,845 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 351 transitions. [2022-11-02 21:04:39,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:39,845 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 351 transitions. [2022-11-02 21:04:39,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-02 21:04:39,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:39,848 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 1, 1, 1] [2022-11-02 21:04:39,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:40,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:40,075 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:40,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:40,075 INFO L85 PathProgramCache]: Analyzing trace with hash 221628939, now seen corresponding path program 4 times [2022-11-02 21:04:40,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:40,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036027904] [2022-11-02 21:04:40,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:40,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:40,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:40,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:40,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036027904] [2022-11-02 21:04:40,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036027904] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:04:40,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068444306] [2022-11-02 21:04:40,818 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 21:04:40,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:40,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:40,819 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:04:40,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-02 21:04:40,931 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 21:04:40,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:04:40,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-02 21:04:40,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:41,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:41,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:04:42,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:42,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068444306] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:04:42,495 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:04:42,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-02 21:04:42,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656389089] [2022-11-02 21:04:42,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:04:42,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-02 21:04:42,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:42,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-02 21:04:42,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 21:04:42,498 INFO L87 Difference]: Start difference. First operand 328 states and 351 transitions. Second operand has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:42,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:42,680 INFO L93 Difference]: Finished difference Result 332 states and 355 transitions. [2022-11-02 21:04:42,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-02 21:04:42,681 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2022-11-02 21:04:42,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:42,682 INFO L225 Difference]: With dead ends: 332 [2022-11-02 21:04:42,683 INFO L226 Difference]: Without dead ends: 331 [2022-11-02 21:04:42,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 21:04:42,684 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 46 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:42,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 245 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:42,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-11-02 21:04:42,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-11-02 21:04:42,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 329 states have (on average 1.006079027355623) internal successors, (331), 330 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:42,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 331 transitions. [2022-11-02 21:04:42,701 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 331 transitions. Word has length 161 [2022-11-02 21:04:42,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:42,701 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 331 transitions. [2022-11-02 21:04:42,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:42,702 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 331 transitions. [2022-11-02 21:04:42,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-02 21:04:42,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:42,709 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 1, 1, 1] [2022-11-02 21:04:42,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:42,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-02 21:04:42,927 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:42,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash -136535612, now seen corresponding path program 5 times [2022-11-02 21:04:42,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:42,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332374885] [2022-11-02 21:04:42,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:42,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:45,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:45,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332374885] [2022-11-02 21:04:45,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332374885] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:04:45,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532168554] [2022-11-02 21:04:45,863 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 21:04:45,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:45,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:45,865 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:04:45,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-02 21:04:46,117 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-02 21:04:46,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:04:46,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-02 21:04:46,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:46,781 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:46,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:04:50,857 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:50,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532168554] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:04:50,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:04:50,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-02 21:04:50,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116376568] [2022-11-02 21:04:50,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:04:50,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-02 21:04:50,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:50,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-02 21:04:50,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-02 21:04:50,871 INFO L87 Difference]: Start difference. First operand 331 states and 331 transitions. Second operand has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:51,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:51,529 INFO L93 Difference]: Finished difference Result 712 states and 759 transitions. [2022-11-02 21:04:51,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-02 21:04:51,530 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2022-11-02 21:04:51,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:51,534 INFO L225 Difference]: With dead ends: 712 [2022-11-02 21:04:51,535 INFO L226 Difference]: Without dead ends: 711 [2022-11-02 21:04:51,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-02 21:04:51,539 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 466 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:51,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 540 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:51,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-11-02 21:04:51,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 664. [2022-11-02 21:04:51,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 662 states have (on average 1.0740181268882176) internal successors, (711), 663 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:51,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 711 transitions. [2022-11-02 21:04:51,560 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 711 transitions. Word has length 326 [2022-11-02 21:04:51,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:51,561 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 711 transitions. [2022-11-02 21:04:51,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:51,561 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 711 transitions. [2022-11-02 21:04:51,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-02 21:04:51,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:51,567 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 1, 1, 1] [2022-11-02 21:04:51,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-02 21:04:51,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:51,790 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:51,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:51,791 INFO L85 PathProgramCache]: Analyzing trace with hash -198343029, now seen corresponding path program 5 times [2022-11-02 21:04:51,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:51,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737039721] [2022-11-02 21:04:51,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:51,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:54,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:54,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737039721] [2022-11-02 21:04:54,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737039721] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:04:54,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182890297] [2022-11-02 21:04:54,096 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 21:04:54,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:04:54,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:54,099 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:04:54,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-02 21:04:54,311 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-02 21:04:54,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:04:54,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-02 21:04:54,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:54,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:04:58,679 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:58,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182890297] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:04:58,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:04:58,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-02 21:04:58,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022086228] [2022-11-02 21:04:58,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:04:58,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-02 21:04:58,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:58,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-02 21:04:58,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-02 21:04:58,690 INFO L87 Difference]: Start difference. First operand 664 states and 711 transitions. Second operand has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:59,386 INFO L93 Difference]: Finished difference Result 668 states and 715 transitions. [2022-11-02 21:04:59,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-02 21:04:59,390 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 329 [2022-11-02 21:04:59,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:59,394 INFO L225 Difference]: With dead ends: 668 [2022-11-02 21:04:59,394 INFO L226 Difference]: Without dead ends: 667 [2022-11-02 21:04:59,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-02 21:04:59,398 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 94 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:59,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 489 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:59,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-11-02 21:04:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2022-11-02 21:04:59,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 665 states have (on average 1.0030075187969925) internal successors, (667), 666 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 667 transitions. [2022-11-02 21:04:59,425 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 667 transitions. Word has length 329 [2022-11-02 21:04:59,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:59,426 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 667 transitions. [2022-11-02 21:04:59,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,427 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 667 transitions. [2022-11-02 21:04:59,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2022-11-02 21:04:59,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:59,450 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 1, 1, 1] [2022-11-02 21:04:59,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:59,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-02 21:04:59,671 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:04:59,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:59,671 INFO L85 PathProgramCache]: Analyzing trace with hash -395097916, now seen corresponding path program 6 times [2022-11-02 21:04:59,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:59,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139317119] [2022-11-02 21:04:59,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:59,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:09,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:09,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139317119] [2022-11-02 21:05:09,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139317119] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:05:09,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829215214] [2022-11-02 21:05:09,133 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-02 21:05:09,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:05:09,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:09,134 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:05:09,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-02 21:05:09,668 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-02 21:05:09,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:05:09,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-02 21:05:09,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:10,875 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:10,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:23,688 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:23,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829215214] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:23,689 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:05:23,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-02 21:05:23,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546282100] [2022-11-02 21:05:23,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:23,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-02 21:05:23,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:23,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-02 21:05:23,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-02 21:05:23,705 INFO L87 Difference]: Start difference. First operand 667 states and 667 transitions. Second operand has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:26,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:26,732 INFO L93 Difference]: Finished difference Result 1432 states and 1527 transitions. [2022-11-02 21:05:26,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-02 21:05:26,734 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 662 [2022-11-02 21:05:26,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:26,740 INFO L225 Difference]: With dead ends: 1432 [2022-11-02 21:05:26,741 INFO L226 Difference]: Without dead ends: 1431 [2022-11-02 21:05:26,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1228 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-02 21:05:26,746 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1026 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:26,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1065 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:05:26,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2022-11-02 21:05:26,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1336. [2022-11-02 21:05:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1334 states have (on average 1.0727136431784108) internal successors, (1431), 1335 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:26,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1431 transitions. [2022-11-02 21:05:26,790 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1431 transitions. Word has length 662 [2022-11-02 21:05:26,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:26,792 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 1431 transitions. [2022-11-02 21:05:26,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:26,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1431 transitions. [2022-11-02 21:05:26,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2022-11-02 21:05:26,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:26,799 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 94, 1, 1, 1] [2022-11-02 21:05:26,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:27,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-02 21:05:27,026 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:05:27,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:27,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2143387531, now seen corresponding path program 6 times [2022-11-02 21:05:27,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:27,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442522641] [2022-11-02 21:05:27,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:27,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:35,957 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:35,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:35,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442522641] [2022-11-02 21:05:35,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442522641] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:05:35,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119099291] [2022-11-02 21:05:35,959 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-02 21:05:35,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:05:35,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:35,967 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:05:35,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-02 21:05:36,483 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-02 21:05:36,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:05:36,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1238 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-02 21:05:36,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:37,714 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:37,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:50,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119099291] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:50,820 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:05:50,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-02 21:05:50,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656007127] [2022-11-02 21:05:50,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:50,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-02 21:05:50,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:50,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-02 21:05:50,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-02 21:05:50,833 INFO L87 Difference]: Start difference. First operand 1336 states and 1431 transitions. Second operand has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:53,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:53,394 INFO L93 Difference]: Finished difference Result 1340 states and 1435 transitions. [2022-11-02 21:05:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-02 21:05:53,395 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 665 [2022-11-02 21:05:53,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:53,400 INFO L225 Difference]: With dead ends: 1340 [2022-11-02 21:05:53,401 INFO L226 Difference]: Without dead ends: 1339 [2022-11-02 21:05:53,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1424 GetRequests, 1234 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-02 21:05:53,405 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 190 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:53,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 973 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:05:53,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2022-11-02 21:05:53,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1339. [2022-11-02 21:05:53,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1337 states have (on average 1.0014958863126402) internal successors, (1339), 1338 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:53,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1339 transitions. [2022-11-02 21:05:53,445 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1339 transitions. Word has length 665 [2022-11-02 21:05:53,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:53,446 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 1339 transitions. [2022-11-02 21:05:53,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:53,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1339 transitions. [2022-11-02 21:05:53,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2022-11-02 21:05:53,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:53,462 INFO L195 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 190, 190, 1, 1, 1] [2022-11-02 21:05:53,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:53,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-02 21:05:53,663 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:05:53,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:53,664 INFO L85 PathProgramCache]: Analyzing trace with hash -28404028, now seen corresponding path program 7 times [2022-11-02 21:05:53,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:53,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119428270] [2022-11-02 21:05:53,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:53,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:30,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:30,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119428270] [2022-11-02 21:06:30,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119428270] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:30,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503692183] [2022-11-02 21:06:30,627 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-02 21:06:30,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:30,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:30,628 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:30,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-02 21:06:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:31,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-02 21:06:31,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:32,845 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:32,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:07:18,387 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:18,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503692183] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:07:18,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:07:18,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-11-02 21:07:18,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705481983] [2022-11-02 21:07:18,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:07:18,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-11-02 21:07:18,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:18,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-11-02 21:07:18,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-02 21:07:18,433 INFO L87 Difference]: Start difference. First operand 1339 states and 1339 transitions. Second operand has 384 states, 383 states have (on average 6.9634464751958225) internal successors, (2667), 384 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:38,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:07:38,635 INFO L93 Difference]: Finished difference Result 2872 states and 3063 transitions. [2022-11-02 21:07:38,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-11-02 21:07:38,637 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.9634464751958225) internal successors, (2667), 384 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1334 [2022-11-02 21:07:38,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:07:38,650 INFO L225 Difference]: With dead ends: 2872 [2022-11-02 21:07:38,650 INFO L226 Difference]: Without dead ends: 2871 [2022-11-02 21:07:38,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2858 GetRequests, 2476 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 57.3s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-02 21:07:38,663 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2397 mSDsluCounter, 2111 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:07:38,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 2120 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 21:07:38,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2022-11-02 21:07:38,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2680. [2022-11-02 21:07:38,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2678 states have (on average 1.072068707991038) internal successors, (2871), 2679 states have internal predecessors, (2871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:38,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 2871 transitions. [2022-11-02 21:07:38,747 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 2871 transitions. Word has length 1334 [2022-11-02 21:07:38,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:07:38,749 INFO L495 AbstractCegarLoop]: Abstraction has 2680 states and 2871 transitions. [2022-11-02 21:07:38,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.9634464751958225) internal successors, (2667), 384 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:38,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 2871 transitions. [2022-11-02 21:07:38,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1338 [2022-11-02 21:07:38,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:07:38,771 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 190, 190, 1, 1, 1] [2022-11-02 21:07:38,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-02 21:07:38,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6339ec-36f0-4acf-a1ac-4a68d8f28723/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:38,998 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 21:07:38,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:38,999 INFO L85 PathProgramCache]: Analyzing trace with hash -75796085, now seen corresponding path program 7 times [2022-11-02 21:07:38,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:38,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332172177] [2022-11-02 21:07:38,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:39,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat