./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a5b1197714500d659d0acf4ebb2204b824a1c828702d044651e5c066ddbe97af --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:32:15,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:32:15,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:32:15,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:32:15,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:32:15,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:32:15,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:32:15,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:32:15,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:32:15,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:32:15,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:32:15,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:32:15,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:32:15,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:32:15,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:32:15,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:32:15,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:32:15,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:32:15,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:32:15,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:32:15,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:32:15,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:32:15,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:32:15,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:32:15,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:32:15,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:32:15,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:32:15,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:32:15,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:32:15,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:32:15,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:32:15,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:32:15,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:32:15,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:32:15,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:32:15,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:32:15,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:32:15,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:32:15,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:32:15,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:32:15,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:32:15,143 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-20 10:32:15,185 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:32:15,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:32:15,186 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:32:15,186 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:32:15,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:32:15,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:32:15,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:32:15,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:32:15,192 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:32:15,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:32:15,193 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:32:15,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:32:15,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:32:15,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:32:15,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:32:15,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:32:15,194 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:32:15,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:32:15,195 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:32:15,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:32:15,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:32:15,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:32:15,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:32:15,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:15,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:32:15,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:32:15,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:32:15,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:32:15,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:32:15,198 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:32:15,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:32:15,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:32:15,199 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_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5b1197714500d659d0acf4ebb2204b824a1c828702d044651e5c066ddbe97af [2022-11-20 10:32:15,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:32:15,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:32:15,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:32:15,527 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:32:15,528 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:32:15,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i [2022-11-20 10:32:18,643 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:32:18,904 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:32:18,905 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i [2022-11-20 10:32:18,928 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/data/4c446b0d5/979d3aa38b7647788c1ad47967e6b265/FLAG94d6ae42c [2022-11-20 10:32:18,943 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/data/4c446b0d5/979d3aa38b7647788c1ad47967e6b265 [2022-11-20 10:32:18,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:32:18,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:32:18,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:18,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:32:18,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:32:18,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:18" (1/1) ... [2022-11-20 10:32:18,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379970cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:18, skipping insertion in model container [2022-11-20 10:32:18,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:18" (1/1) ... [2022-11-20 10:32:18,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:32:19,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:32:19,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:19,321 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:32:19,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:19,403 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:32:19,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19 WrapperNode [2022-11-20 10:32:19,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:19,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:19,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:32:19,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:32:19,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (1/1) ... [2022-11-20 10:32:19,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (1/1) ... [2022-11-20 10:32:19,446 INFO L138 Inliner]: procedures = 111, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2022-11-20 10:32:19,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:19,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:32:19,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:32:19,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:32:19,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (1/1) ... [2022-11-20 10:32:19,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (1/1) ... [2022-11-20 10:32:19,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (1/1) ... [2022-11-20 10:32:19,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (1/1) ... [2022-11-20 10:32:19,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (1/1) ... [2022-11-20 10:32:19,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (1/1) ... [2022-11-20 10:32:19,470 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (1/1) ... [2022-11-20 10:32:19,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (1/1) ... [2022-11-20 10:32:19,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:32:19,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:32:19,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:32:19,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:32:19,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (1/1) ... [2022-11-20 10:32:19,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:19,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:19,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:32:19,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:32:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:32:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:32:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:32:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:32:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:32:19,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:32:19,671 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:32:19,673 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:32:19,797 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:32:19,803 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:32:19,804 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:32:19,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:19 BoogieIcfgContainer [2022-11-20 10:32:19,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:32:19,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:32:19,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:32:19,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:32:19,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:32:18" (1/3) ... [2022-11-20 10:32:19,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b43b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:19, skipping insertion in model container [2022-11-20 10:32:19,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:19" (2/3) ... [2022-11-20 10:32:19,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b43b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:19, skipping insertion in model container [2022-11-20 10:32:19,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:19" (3/3) ... [2022-11-20 10:32:19,818 INFO L112 eAbstractionObserver]: Analyzing ICFG ex3a-alloca.i [2022-11-20 10:32:19,842 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:32:19,842 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 10:32:19,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:32:19,917 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5b816085, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:32:19,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 10:32:19,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 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) [2022-11-20 10:32:19,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 10:32:19,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:19,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 10:32:19,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 10:32:19,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:19,939 INFO L85 PathProgramCache]: Analyzing trace with hash 889569447, now seen corresponding path program 1 times [2022-11-20 10:32:19,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:19,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395677609] [2022-11-20 10:32:19,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:19,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:20,080 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:32:20,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493206943] [2022-11-20 10:32:20,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:20,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:20,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:20,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:20,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:32:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:20,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:32:20,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:20,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-11-20 10:32:20,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:20,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:20,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:20,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395677609] [2022-11-20 10:32:20,625 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:32:20,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493206943] [2022-11-20 10:32:20,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493206943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:20,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:20,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:32:20,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449518820] [2022-11-20 10:32:20,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:20,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:32:20,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:20,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:32:20,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:32:20,700 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 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 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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) [2022-11-20 10:32:20,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:20,863 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-11-20 10:32:20,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:32:20,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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 [2022-11-20 10:32:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:20,873 INFO L225 Difference]: With dead ends: 33 [2022-11-20 10:32:20,874 INFO L226 Difference]: Without dead ends: 17 [2022-11-20 10:32:20,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:32:20,881 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:20,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 33 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:32:20,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-20 10:32:20,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-20 10:32:20,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 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) [2022-11-20 10:32:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-20 10:32:20,921 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 6 [2022-11-20 10:32:20,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:20,922 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-20 10:32:20,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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) [2022-11-20 10:32:20,922 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-20 10:32:20,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 10:32:20,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:20,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 10:32:20,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:21,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-20 10:32:21,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 10:32:21,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:21,131 INFO L85 PathProgramCache]: Analyzing trace with hash 889571369, now seen corresponding path program 1 times [2022-11-20 10:32:21,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:21,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896075116] [2022-11-20 10:32:21,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:21,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:21,158 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:32:21,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19339544] [2022-11-20 10:32:21,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:21,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:21,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:21,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:21,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:32:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:21,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:32:21,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:21,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:21,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:21,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:21,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896075116] [2022-11-20 10:32:21,278 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:32:21,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19339544] [2022-11-20 10:32:21,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19339544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:21,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:21,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:21,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926467048] [2022-11-20 10:32:21,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:21,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:21,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:21,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:21,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:21,286 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 3 states have (on average 2.0) 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) [2022-11-20 10:32:21,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:21,301 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-11-20 10:32:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:21,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) 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 [2022-11-20 10:32:21,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:21,305 INFO L225 Difference]: With dead ends: 26 [2022-11-20 10:32:21,306 INFO L226 Difference]: Without dead ends: 12 [2022-11-20 10:32:21,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:21,308 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 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 [2022-11-20 10:32:21,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:32:21,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-20 10:32:21,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-20 10:32:21,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-20 10:32:21,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 10:32:21,312 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2022-11-20 10:32:21,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:21,313 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 10:32:21,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) 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) [2022-11-20 10:32:21,313 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 10:32:21,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 10:32:21,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:21,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:21,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:21,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:21,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 10:32:21,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:21,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849133, now seen corresponding path program 1 times [2022-11-20 10:32:21,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:21,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371405521] [2022-11-20 10:32:21,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:21,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:21,538 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:32:21,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041807205] [2022-11-20 10:32:21,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:21,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:21,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:21,540 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:21,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:32:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:21,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:32:21,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:21,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-20 10:32:21,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:21,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:21,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:21,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371405521] [2022-11-20 10:32:21,762 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:32:21,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041807205] [2022-11-20 10:32:21,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041807205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:21,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:21,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:32:21,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432479621] [2022-11-20 10:32:21,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:21,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:32:21,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:21,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:32:21,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:32:21,768 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2022-11-20 10:32:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:21,810 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-20 10:32:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:32:21,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 [2022-11-20 10:32:21,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:21,812 INFO L225 Difference]: With dead ends: 12 [2022-11-20 10:32:21,812 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 10:32:21,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:32:21,820 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:21,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 12 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:32:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 10:32:21,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-20 10:32:21,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:21,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-11-20 10:32:21,830 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2022-11-20 10:32:21,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:21,831 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2022-11-20 10:32:21,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2022-11-20 10:32:21,831 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-11-20 10:32:21,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 10:32:21,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:21,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:21,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 10:32:22,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-20 10:32:22,043 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 10:32:22,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:22,044 INFO L85 PathProgramCache]: Analyzing trace with hash 177748329, now seen corresponding path program 1 times [2022-11-20 10:32:22,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:22,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584234479] [2022-11-20 10:32:22,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:22,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:22,100 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:32:22,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444187382] [2022-11-20 10:32:22,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:22,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:22,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:22,113 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:22,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:32:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:22,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 10:32:22,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:22,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-20 10:32:22,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:32:22,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-20 10:32:22,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-20 10:32:22,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:32:22,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 10:32:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:22,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:22,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:22,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584234479] [2022-11-20 10:32:22,320 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:32:22,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444187382] [2022-11-20 10:32:22,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444187382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:22,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:22,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:22,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744666611] [2022-11-20 10:32:22,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:22,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:32:22,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:22,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:32:22,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:32:22,323 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-20 10:32:22,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:22,377 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-11-20 10:32:22,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:32:22,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2022-11-20 10:32:22,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:22,386 INFO L225 Difference]: With dead ends: 20 [2022-11-20 10:32:22,386 INFO L226 Difference]: Without dead ends: 19 [2022-11-20 10:32:22,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:32:22,393 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:22,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 11 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:32:22,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-20 10:32:22,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-11-20 10:32:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.1333333333333333) 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) [2022-11-20 10:32:22,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-20 10:32:22,407 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2022-11-20 10:32:22,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:22,408 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-20 10:32:22,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-20 10:32:22,408 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-20 10:32:22,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 10:32:22,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:22,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:22,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-20 10:32:22,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:22,612 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 10:32:22,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:22,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1215230959, now seen corresponding path program 1 times [2022-11-20 10:32:22,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:22,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581626190] [2022-11-20 10:32:22,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:22,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:22,634 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:32:22,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1674740165] [2022-11-20 10:32:22,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:22,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:22,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:22,636 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:22,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:32:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:22,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 10:32:22,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:22,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-20 10:32:22,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:32:22,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-20 10:32:22,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-20 10:32:22,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:32:22,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 10:32:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:22,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:22,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:22,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581626190] [2022-11-20 10:32:22,809 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:32:22,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674740165] [2022-11-20 10:32:22,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674740165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:22,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:22,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:22,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148942095] [2022-11-20 10:32:22,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:22,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:32:22,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:22,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:32:22,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:32:22,812 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-11-20 10:32:22,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:22,836 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-20 10:32:22,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:32:22,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2022-11-20 10:32:22,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:22,838 INFO L225 Difference]: With dead ends: 17 [2022-11-20 10:32:22,838 INFO L226 Difference]: Without dead ends: 16 [2022-11-20 10:32:22,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:32:22,839 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:22,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:32:22,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-20 10:32:22,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-20 10:32:22,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) 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) [2022-11-20 10:32:22,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-20 10:32:22,843 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2022-11-20 10:32:22,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:22,843 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-20 10:32:22,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-11-20 10:32:22,843 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-20 10:32:22,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 10:32:22,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:22,844 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 10:32:22,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:23,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:23,053 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 10:32:23,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:23,054 INFO L85 PathProgramCache]: Analyzing trace with hash -326396970, now seen corresponding path program 1 times [2022-11-20 10:32:23,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:23,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492792021] [2022-11-20 10:32:23,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:23,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:23,074 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:32:23,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1917138214] [2022-11-20 10:32:23,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:23,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:23,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:23,076 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:23,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:32:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:23,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 10:32:23,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:23,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-20 10:32:23,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:32:23,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-20 10:32:23,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-20 10:32:23,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:32:23,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-20 10:32:23,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:32:23,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 10:32:23,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:23,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:32:23,374 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_173 Int) (v_ArrVal_175 (Array Int Int))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_173)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_175) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (not (<= v_ArrVal_173 (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))))) is different from false [2022-11-20 10:32:23,403 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_172 (Array Int Int)) (v_ArrVal_173 Int) (v_ArrVal_175 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_172))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_173)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_175) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (+ (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_173))))) is different from false [2022-11-20 10:32:23,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2022-11-20 10:32:23,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:23,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492792021] [2022-11-20 10:32:23,476 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:32:23,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917138214] [2022-11-20 10:32:23,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917138214] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:32:23,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:32:23,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-11-20 10:32:23,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481902598] [2022-11-20 10:32:23,478 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:32:23,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:32:23,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:23,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:32:23,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=36, Unknown=2, NotChecked=26, Total=90 [2022-11-20 10:32:23,479 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:23,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:23,539 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-11-20 10:32:23,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:32:23,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-20 10:32:23,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:23,541 INFO L225 Difference]: With dead ends: 25 [2022-11-20 10:32:23,541 INFO L226 Difference]: Without dead ends: 24 [2022-11-20 10:32:23,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=36, Unknown=2, NotChecked=26, Total=90 [2022-11-20 10:32:23,542 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:23,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 40 Unchecked, 0.0s Time] [2022-11-20 10:32:23,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-20 10:32:23,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2022-11-20 10:32:23,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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) [2022-11-20 10:32:23,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2022-11-20 10:32:23,547 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 15 [2022-11-20 10:32:23,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:23,548 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2022-11-20 10:32:23,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:23,548 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2022-11-20 10:32:23,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 10:32:23,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:23,550 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2022-11-20 10:32:23,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:23,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:23,756 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 10:32:23,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:23,757 INFO L85 PathProgramCache]: Analyzing trace with hash -404810551, now seen corresponding path program 2 times [2022-11-20 10:32:23,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:23,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328021875] [2022-11-20 10:32:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:23,782 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:32:23,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250095673] [2022-11-20 10:32:23,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:32:23,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:23,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:23,784 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:23,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:32:23,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:32:23,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:32:23,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 10:32:23,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:23,946 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-20 10:32:23,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-20 10:32:23,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-20 10:32:23,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-20 10:32:23,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2022-11-20 10:32:23,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-20 10:32:24,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-20 10:32:24,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:32:24,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-20 10:32:24,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:32:24,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-20 10:32:24,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:32:24,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 10:32:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:24,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:32:24,338 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_229 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_229) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)) is different from false [2022-11-20 10:32:24,371 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_229 (Array Int Int)) (v_ArrVal_227 Int)) (or (not (<= v_ArrVal_227 (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_227)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_229) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647))) is different from false [2022-11-20 10:32:24,405 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_226 (Array Int Int)) (v_ArrVal_229 (Array Int Int)) (v_ArrVal_227 Int)) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_226))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_227) (< (select (select (store (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_227)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_229) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647))))) is different from false [2022-11-20 10:32:24,474 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_224 Int) (v_ArrVal_226 (Array Int Int)) (v_ArrVal_229 (Array Int Int)) (v_ArrVal_227 Int)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_224)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_226))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (not (<= v_ArrVal_224 (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) (< (+ (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_227) (< (select (select (store (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_227)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_229) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647))))) is different from false [2022-11-20 10:32:24,522 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_224 Int) (v_ArrVal_226 (Array Int Int)) (v_ArrVal_229 (Array Int Int)) (v_ArrVal_223 (Array Int Int)) (v_ArrVal_227 Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_223))) (let ((.cse0 (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse1 (store (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_224)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_226))) (let ((.cse2 (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_224) (< (select (select (store (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_227)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_229) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (+ (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_227))))))) is different from false [2022-11-20 10:32:24,626 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 19 not checked. [2022-11-20 10:32:24,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:24,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328021875] [2022-11-20 10:32:24,626 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:32:24,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250095673] [2022-11-20 10:32:24,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250095673] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:32:24,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:32:24,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-20 10:32:24,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092376753] [2022-11-20 10:32:24,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:32:24,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:32:24,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:24,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:32:24,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=48, Unknown=5, NotChecked=90, Total=182 [2022-11-20 10:32:24,629 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 14 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 14 states have internal predecessors, (43), 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) [2022-11-20 10:32:24,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:24,746 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2022-11-20 10:32:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:32:24,746 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 14 states have internal predecessors, (43), 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 22 [2022-11-20 10:32:24,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:24,747 INFO L225 Difference]: With dead ends: 32 [2022-11-20 10:32:24,747 INFO L226 Difference]: Without dead ends: 31 [2022-11-20 10:32:24,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=59, Unknown=5, NotChecked=100, Total=210 [2022-11-20 10:32:24,748 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 96 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:24,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 96 Unchecked, 0.0s Time] [2022-11-20 10:32:24,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-20 10:32:24,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-11-20 10:32:24,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 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) [2022-11-20 10:32:24,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2022-11-20 10:32:24,754 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 22 [2022-11-20 10:32:24,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:24,754 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2022-11-20 10:32:24,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 14 states have internal predecessors, (43), 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) [2022-11-20 10:32:24,754 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2022-11-20 10:32:24,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 10:32:24,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:24,755 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1] [2022-11-20 10:32:24,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:24,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 10:32:24,961 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 10:32:24,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:24,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1247358070, now seen corresponding path program 3 times [2022-11-20 10:32:24,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:24,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124581586] [2022-11-20 10:32:24,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:24,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:24,984 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:32:24,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1525312083] [2022-11-20 10:32:24,985 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:32:24,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:24,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:24,986 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:25,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 10:32:25,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-20 10:32:25,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:32:25,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-20 10:32:25,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:25,201 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-20 10:32:25,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-20 10:32:25,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-20 10:32:25,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-20 10:32:25,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:32:25,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:32:25,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-20 10:32:25,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-20 10:32:25,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-20 10:32:25,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:32:25,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-20 10:32:25,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:32:25,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-20 10:32:25,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:32:25,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-20 10:32:25,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:32:25,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 10:32:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:25,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:32:25,636 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_293 Int) (v_ArrVal_295 (Array Int Int))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_293)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_295) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (not (<= v_ArrVal_293 (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))))) is different from false [2022-11-20 10:32:25,660 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_292 (Array Int Int)) (v_ArrVal_293 Int) (v_ArrVal_295 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_292))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_293)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_295) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (+ (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_293))))) is different from false [2022-11-20 10:32:25,719 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_292 (Array Int Int)) (v_ArrVal_293 Int) (v_ArrVal_295 (Array Int Int)) (v_ArrVal_290 Int)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_290)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_292))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_293) (not (<= v_ArrVal_290 (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) (< (select (select (store (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_293)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_295) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647))))) is different from false [2022-11-20 10:32:25,768 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_292 (Array Int Int)) (v_ArrVal_293 Int) (v_ArrVal_295 (Array Int Int)) (v_ArrVal_289 (Array Int Int)) (v_ArrVal_290 Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_289))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (store (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_290)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_292))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_293)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_295) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (+ (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_290) (< (+ (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_293))))))) is different from false [2022-11-20 10:32:25,883 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_287 Int) (v_ArrVal_292 (Array Int Int)) (v_ArrVal_293 Int) (v_ArrVal_295 (Array Int Int)) (v_ArrVal_289 (Array Int Int)) (v_ArrVal_290 Int)) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_287)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_289))) (let ((.cse1 (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse2 (store (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_290)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_292))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (not (<= v_ArrVal_287 (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) (< (+ (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_293) (< (+ (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_290) (< (select (select (store (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_293)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_295) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647))))))) is different from false [2022-11-20 10:32:25,977 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_287 Int) (v_ArrVal_292 (Array Int Int)) (v_ArrVal_293 Int) (v_ArrVal_295 (Array Int Int)) (v_ArrVal_286 (Array Int Int)) (v_ArrVal_289 (Array Int Int)) (v_ArrVal_290 Int)) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_286))) (let ((.cse2 (select .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse4 (store (store .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_287)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_289))) (let ((.cse0 (select .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse3 (store (store .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_290)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_292))) (let ((.cse1 (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_290) (< (+ (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_293) (< (+ (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_287) (< (select (select (store (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_293)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_295) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647))))))))) is different from false [2022-11-20 10:32:26,149 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 39 not checked. [2022-11-20 10:32:26,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:26,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124581586] [2022-11-20 10:32:26,150 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:32:26,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525312083] [2022-11-20 10:32:26,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525312083] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:32:26,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:32:26,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2022-11-20 10:32:26,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903059223] [2022-11-20 10:32:26,151 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:32:26,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:32:26,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:26,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:32:26,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=83, Unknown=8, NotChecked=150, Total=306 [2022-11-20 10:32:26,152 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 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) [2022-11-20 10:32:26,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:26,325 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2022-11-20 10:32:26,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:32:26,326 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 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 29 [2022-11-20 10:32:26,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:26,327 INFO L225 Difference]: With dead ends: 39 [2022-11-20 10:32:26,327 INFO L226 Difference]: Without dead ends: 38 [2022-11-20 10:32:26,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 8 SemanticMatches, 17 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=98, Unknown=8, NotChecked=162, Total=342 [2022-11-20 10:32:26,328 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 93 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:26,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 29 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 46 Invalid, 0 Unknown, 93 Unchecked, 0.1s Time] [2022-11-20 10:32:26,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-20 10:32:26,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2022-11-20 10:32:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0277777777777777) 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) [2022-11-20 10:32:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2022-11-20 10:32:26,334 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 29 [2022-11-20 10:32:26,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:26,334 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2022-11-20 10:32:26,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 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) [2022-11-20 10:32:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2022-11-20 10:32:26,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 10:32:26,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:26,336 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1] [2022-11-20 10:32:26,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:26,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:26,543 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 10:32:26,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:26,544 INFO L85 PathProgramCache]: Analyzing trace with hash 2027063337, now seen corresponding path program 4 times [2022-11-20 10:32:26,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:26,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886438007] [2022-11-20 10:32:26,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:26,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:26,564 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:32:26,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [619188753] [2022-11-20 10:32:26,565 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 10:32:26,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:26,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:26,566 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:26,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 10:32:26,685 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 10:32:26,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:32:26,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-20 10:32:26,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:26,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-20 10:32:26,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:32:26,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-20 10:32:26,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-20 10:32:26,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:32:26,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-20 10:32:26,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:32:26,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-20 10:32:26,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:32:26,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-20 10:32:26,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:32:27,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-20 10:32:27,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:32:27,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 10:32:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:27,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:32:27,122 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_371 (Array Int Int)) (v_ArrVal_369 Int)) (or (not (<= v_ArrVal_369 (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_369)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_371) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647))) is different from false [2022-11-20 10:32:27,144 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_371 (Array Int Int)) (v_ArrVal_368 (Array Int Int)) (v_ArrVal_369 Int)) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_368))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_369) (< (select (select (store (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_369)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_371) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647))))) is different from false [2022-11-20 10:32:27,198 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_366 Int) (v_ArrVal_371 (Array Int Int)) (v_ArrVal_368 (Array Int Int)) (v_ArrVal_369 Int)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_366)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_368))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_369)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_371) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (not (<= v_ArrVal_366 (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) (< (+ (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_369))))) is different from false [2022-11-20 10:32:27,236 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_366 Int) (v_ArrVal_371 (Array Int Int)) (v_ArrVal_365 (Array Int Int)) (v_ArrVal_368 (Array Int Int)) (v_ArrVal_369 Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_365))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (store (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_366)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_368))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_369)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_371) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (+ (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_366) (< (+ 1 (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|)) v_ArrVal_369))))))) is different from false [2022-11-20 10:32:27,328 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_366 Int) (v_ArrVal_363 Int) (v_ArrVal_371 (Array Int Int)) (v_ArrVal_365 (Array Int Int)) (v_ArrVal_368 (Array Int Int)) (v_ArrVal_369 Int)) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_363)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_365))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (store (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_366)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_368))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_369)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_371) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (+ (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_369) (< (+ (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_366) (not (<= v_ArrVal_363 (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))))))))) is different from false [2022-11-20 10:32:27,388 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_366 Int) (v_ArrVal_363 Int) (v_ArrVal_371 (Array Int Int)) (v_ArrVal_362 (Array Int Int)) (v_ArrVal_365 (Array Int Int)) (v_ArrVal_368 (Array Int Int)) (v_ArrVal_369 Int)) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_362))) (let ((.cse1 (select .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse4 (store (store .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_363)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_365))) (let ((.cse0 (select .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse2 (store (store .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_366)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_368))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_366) (< (+ (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_363) (< (select (select (store (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_369)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_371) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (+ (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_369))))))))) is different from false [2022-11-20 10:32:27,533 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_366 Int) (v_ArrVal_363 Int) (v_ArrVal_371 (Array Int Int)) (v_ArrVal_361 Int) (v_ArrVal_362 (Array Int Int)) (v_ArrVal_365 (Array Int Int)) (v_ArrVal_368 (Array Int Int)) (v_ArrVal_369 Int)) (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_361)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_362))) (let ((.cse3 (select .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse4 (store (store .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_363)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_365))) (let ((.cse2 (select .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (store (store .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_366)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_368))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_369)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_371) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (not (<= v_ArrVal_361 (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) (< (+ 1 (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|)) v_ArrVal_366) (< (+ (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_369) (< (+ (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_363))))))))) is different from false [2022-11-20 10:32:27,650 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_359 (Array Int Int)) (v_ArrVal_366 Int) (v_ArrVal_363 Int) (v_ArrVal_371 (Array Int Int)) (v_ArrVal_361 Int) (v_ArrVal_362 (Array Int Int)) (v_ArrVal_365 (Array Int Int)) (v_ArrVal_368 (Array Int Int)) (v_ArrVal_369 Int)) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_359))) (let ((.cse3 (select .cse7 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse6 (store (store .cse7 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_361)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_362))) (let ((.cse0 (select .cse6 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse5 (store (store .cse6 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_363)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_365))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse1 (store (store .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_366)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_368))) (let ((.cse2 (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_363) (< (select (select (store (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| v_ArrVal_369)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_371) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (+ (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_361) (< (+ (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_369) (< (+ (select .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 1) v_ArrVal_366))))))))))) is different from false [2022-11-20 10:32:27,839 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 66 not checked. [2022-11-20 10:32:27,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:27,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886438007] [2022-11-20 10:32:27,840 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:32:27,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619188753] [2022-11-20 10:32:27,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619188753] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:32:27,840 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:32:27,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2022-11-20 10:32:27,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525327460] [2022-11-20 10:32:27,841 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:32:27,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 10:32:27,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:27,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 10:32:27,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=117, Unknown=8, NotChecked=248, Total=462 [2022-11-20 10:32:27,843 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 22 states, 21 states have (on average 3.380952380952381) internal successors, (71), 22 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:28,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:28,109 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2022-11-20 10:32:28,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:32:28,110 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.380952380952381) internal successors, (71), 22 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-20 10:32:28,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:28,110 INFO L225 Difference]: With dead ends: 46 [2022-11-20 10:32:28,110 INFO L226 Difference]: Without dead ends: 45 [2022-11-20 10:32:28,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 51 SyntacticMatches, 12 SemanticMatches, 21 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=135, Unknown=8, NotChecked=264, Total=506 [2022-11-20 10:32:28,111 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 157 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:28,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 31 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 52 Invalid, 0 Unknown, 157 Unchecked, 0.1s Time] [2022-11-20 10:32:28,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-20 10:32:28,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2022-11-20 10:32:28,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 43 states have internal predecessors, (44), 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) [2022-11-20 10:32:28,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2022-11-20 10:32:28,116 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 36 [2022-11-20 10:32:28,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:28,117 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2022-11-20 10:32:28,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.380952380952381) internal successors, (71), 22 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:28,117 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2022-11-20 10:32:28,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 10:32:28,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:28,118 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1, 1] [2022-11-20 10:32:28,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:28,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:28,325 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 10:32:28,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:28,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1839148310, now seen corresponding path program 5 times [2022-11-20 10:32:28,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:28,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361371386] [2022-11-20 10:32:28,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:28,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:28,348 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:32:28,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106982063] [2022-11-20 10:32:28,348 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 10:32:28,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:28,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:28,350 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:28,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 10:32:28,564 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-11-20 10:32:28,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:32:28,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-20 10:32:28,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:28,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2022-11-20 10:32:28,785 INFO L321 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-11-20 10:32:28,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 45 [2022-11-20 10:32:29,415 INFO L321 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-11-20 10:32:29,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 85 [2022-11-20 10:32:32,807 INFO L321 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2022-11-20 10:32:32,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 89 [2022-11-20 10:32:37,703 INFO L321 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2022-11-20 10:32:37,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 97 [2022-11-20 10:32:39,130 INFO L321 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2022-11-20 10:32:39,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 101 [2022-11-20 10:32:41,569 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 10:32:41,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:41,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:41,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361371386] [2022-11-20 10:32:41,570 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:32:41,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106982063] [2022-11-20 10:32:41,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106982063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:41,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:41,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 10:32:41,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144894064] [2022-11-20 10:32:41,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:41,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:32:41,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:41,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:32:41,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:32:41,573 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:41,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:41,601 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2022-11-20 10:32:41,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:32:41,601 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-20 10:32:41,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:41,602 INFO L225 Difference]: With dead ends: 44 [2022-11-20 10:32:41,602 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 10:32:41,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:32:41,603 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:41,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 43 Unchecked, 0.0s Time] [2022-11-20 10:32:41,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 10:32:41,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 10:32:41,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 10:32:41,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2022-11-20 10:32:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:41,605 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:32:41,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:32:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:32:41,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 10:32:41,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-20 10:32:41,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-20 10:32:41,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-20 10:32:41,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-20 10:32:41,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:41,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 10:32:41,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 10:32:42,399 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 554) no Hoare annotation was computed. [2022-11-20 10:32:42,399 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 10:32:42,399 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 555) no Hoare annotation was computed. [2022-11-20 10:32:42,399 INFO L902 garLoopResultBuilder]: At program point L560(lines 559 561) the Hoare annotation is: true [2022-11-20 10:32:42,400 INFO L899 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2022-11-20 10:32:42,400 INFO L899 garLoopResultBuilder]: For program point L554-1(line 554) no Hoare annotation was computed. [2022-11-20 10:32:42,400 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 10:32:42,400 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 554) no Hoare annotation was computed. [2022-11-20 10:32:42,400 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 555) no Hoare annotation was computed. [2022-11-20 10:32:42,400 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 10:32:42,400 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 10:32:42,400 INFO L902 garLoopResultBuilder]: At program point L557(lines 547 558) the Hoare annotation is: true [2022-11-20 10:32:42,400 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-11-20 10:32:42,400 INFO L899 garLoopResultBuilder]: For program point L555-1(line 555) no Hoare annotation was computed. [2022-11-20 10:32:42,401 INFO L899 garLoopResultBuilder]: For program point L553-1(line 553) no Hoare annotation was computed. [2022-11-20 10:32:42,401 INFO L899 garLoopResultBuilder]: For program point L553-3(lines 553 556) no Hoare annotation was computed. [2022-11-20 10:32:42,401 INFO L895 garLoopResultBuilder]: At program point L553-5(lines 553 556) the Hoare annotation is: (let ((.cse3 (select (select |#memory_int| |ULTIMATE.start_test_fun_~c~0#1.base|) |ULTIMATE.start_test_fun_~c~0#1.offset|))) (let ((.cse1 (<= 0 .cse3)) (.cse2 (not (= |ULTIMATE.start_test_fun_~x_ref~0#1.base| |ULTIMATE.start_test_fun_~c~0#1.base|))) (.cse0 (select (select |#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) |ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (or (and (exists ((v_prenex_4 Int) (v_prenex_3 Int) (v_arrayElimCell_46 Int) (|v_ULTIMATE.start_test_fun_#t~mem7#1_26| Int)) (and (<= (* |v_ULTIMATE.start_test_fun_#t~mem7#1_26| v_arrayElimCell_46) v_prenex_3) (<= v_prenex_3 v_prenex_4) (<= (* v_prenex_4 v_prenex_3) .cse0) (<= 2 v_arrayElimCell_46) (<= v_arrayElimCell_46 |v_ULTIMATE.start_test_fun_#t~mem7#1_26|))) .cse1 .cse2 (<= .cse3 2)) (and .cse1 .cse2 (exists ((v_prenex_4 Int) (v_prenex_5 Int) (v_prenex_3 Int) (v_arrayElimCell_46 Int) (|v_ULTIMATE.start_test_fun_#t~mem7#1_26| Int)) (and (= (* v_prenex_5 v_prenex_5) .cse0) (<= (* |v_ULTIMATE.start_test_fun_#t~mem7#1_26| v_arrayElimCell_46) v_prenex_3) (<= (* v_prenex_4 v_prenex_3) v_prenex_5) (<= v_prenex_3 v_prenex_4) (<= 2 v_arrayElimCell_46) (<= v_arrayElimCell_46 |v_ULTIMATE.start_test_fun_#t~mem7#1_26|))) (<= .cse3 3)) (and (<= .cse3 0) .cse1 .cse2) (and .cse1 (<= .cse3 1) .cse2 (exists ((v_arrayElimCell_46 Int) (|v_ULTIMATE.start_test_fun_#t~mem7#1_26| Int)) (and (<= 2 v_arrayElimCell_46) (<= (* |v_ULTIMATE.start_test_fun_#t~mem7#1_26| v_arrayElimCell_46) .cse0) (<= v_arrayElimCell_46 |v_ULTIMATE.start_test_fun_#t~mem7#1_26|))))))) [2022-11-20 10:32:42,401 INFO L899 garLoopResultBuilder]: For program point L553-6(lines 553 556) no Hoare annotation was computed. [2022-11-20 10:32:42,405 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1] [2022-11-20 10:32:42,408 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:32:42,418 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,419 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,419 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,419 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,419 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,420 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,420 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,420 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,420 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,421 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,421 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,421 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,421 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,422 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,422 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,422 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,422 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,422 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,422 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,422 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,423 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,423 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,423 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,423 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,423 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,423 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,424 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,424 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,430 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,430 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,430 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,430 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,431 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,431 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,431 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,431 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,431 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,432 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,432 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,432 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,432 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,433 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,433 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,433 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,433 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,433 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,434 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,434 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,434 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,434 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,434 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,435 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,435 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,435 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,435 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,435 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:32:42 BoogieIcfgContainer [2022-11-20 10:32:42,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:32:42,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:32:42,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:32:42,439 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:32:42,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:19" (3/4) ... [2022-11-20 10:32:42,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:32:42,453 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-20 10:32:42,453 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 10:32:42,454 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:32:42,454 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:32:42,478 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists v_prenex_4 : int, v_prenex_3 : int, v_arrayElimCell_46 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_26 : int :: (((v_ULTIMATE.start_test_fun_#t~mem7#1_26 * v_arrayElimCell_46 <= v_prenex_3 && v_prenex_3 <= v_prenex_4) && v_prenex_4 * v_prenex_3 <= unknown-#memory_int-unknown[x_ref][x_ref]) && 2 <= v_arrayElimCell_46) && v_arrayElimCell_46 <= v_ULTIMATE.start_test_fun_#t~mem7#1_26) && 0 <= unknown-#memory_int-unknown[c][c]) && !(x_ref == c)) && unknown-#memory_int-unknown[c][c] <= 2) || (((0 <= unknown-#memory_int-unknown[c][c] && !(x_ref == c)) && (\exists v_prenex_4 : int, v_prenex_5 : int, v_prenex_3 : int, v_arrayElimCell_46 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_26 : int :: ((((v_prenex_5 * v_prenex_5 == unknown-#memory_int-unknown[x_ref][x_ref] && v_ULTIMATE.start_test_fun_#t~mem7#1_26 * v_arrayElimCell_46 <= v_prenex_3) && v_prenex_4 * v_prenex_3 <= v_prenex_5) && v_prenex_3 <= v_prenex_4) && 2 <= v_arrayElimCell_46) && v_arrayElimCell_46 <= v_ULTIMATE.start_test_fun_#t~mem7#1_26)) && unknown-#memory_int-unknown[c][c] <= 3)) || ((unknown-#memory_int-unknown[c][c] <= 0 && 0 <= unknown-#memory_int-unknown[c][c]) && !(x_ref == c))) || (((0 <= unknown-#memory_int-unknown[c][c] && unknown-#memory_int-unknown[c][c] <= 1) && !(x_ref == c)) && (\exists v_arrayElimCell_46 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_26 : int :: (2 <= v_arrayElimCell_46 && v_ULTIMATE.start_test_fun_#t~mem7#1_26 * v_arrayElimCell_46 <= unknown-#memory_int-unknown[x_ref][x_ref]) && v_arrayElimCell_46 <= v_ULTIMATE.start_test_fun_#t~mem7#1_26)) [2022-11-20 10:32:42,486 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:32:42,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:32:42,487 INFO L158 Benchmark]: Toolchain (without parser) took 23540.19ms. Allocated memory was 140.5MB in the beginning and 249.6MB in the end (delta: 109.1MB). Free memory was 95.4MB in the beginning and 133.1MB in the end (delta: -37.7MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2022-11-20 10:32:42,488 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 140.5MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:32:42,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.16ms. Allocated memory is still 140.5MB. Free memory was 95.4MB in the beginning and 79.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 10:32:42,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.40ms. Allocated memory is still 140.5MB. Free memory was 79.8MB in the beginning and 78.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:32:42,489 INFO L158 Benchmark]: Boogie Preprocessor took 26.35ms. Allocated memory is still 140.5MB. Free memory was 78.0MB in the beginning and 76.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:32:42,489 INFO L158 Benchmark]: RCFGBuilder took 332.48ms. Allocated memory is still 140.5MB. Free memory was 76.5MB in the beginning and 65.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:32:42,489 INFO L158 Benchmark]: TraceAbstraction took 22629.00ms. Allocated memory was 140.5MB in the beginning and 249.6MB in the end (delta: 109.1MB). Free memory was 64.5MB in the beginning and 135.2MB in the end (delta: -70.7MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2022-11-20 10:32:42,490 INFO L158 Benchmark]: Witness Printer took 48.00ms. Allocated memory is still 249.6MB. Free memory was 135.2MB in the beginning and 133.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:32:42,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 140.5MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.16ms. Allocated memory is still 140.5MB. Free memory was 95.4MB in the beginning and 79.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.40ms. Allocated memory is still 140.5MB. Free memory was 79.8MB in the beginning and 78.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.35ms. Allocated memory is still 140.5MB. Free memory was 78.0MB in the beginning and 76.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 332.48ms. Allocated memory is still 140.5MB. Free memory was 76.5MB in the beginning and 65.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 22629.00ms. Allocated memory was 140.5MB in the beginning and 249.6MB in the end (delta: 109.1MB). Free memory was 64.5MB in the beginning and 135.2MB in the end (delta: -70.7MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. * Witness Printer took 48.00ms. Allocated memory is still 249.6MB. Free memory was 135.2MB in the beginning and 133.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 554]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 554]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 22.5s, OverallIterations: 10, TraceHistogramMax: 6, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 429 IncrementalHoareTripleChecker+Unchecked, 137 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 241 IncrementalHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 56 mSDtfsCounter, 241 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 189 SyntacticMatches, 31 SemanticMatches, 86 ConstructedPredicates, 21 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=9, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 8 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 11 NumberOfFragments, 151 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 168 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 16.8s InterpolantComputationTime, 181 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 269 ConstructedInterpolants, 109 QuantifiedInterpolants, 11323 SizeOfPredicates, 57 NumberOfNonLiveVariables, 1069 ConjunctsInSsa, 218 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 100/360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 547]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 553]: Loop Invariant [2022-11-20 10:32:42,506 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,506 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,506 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,507 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,507 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,507 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,507 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,507 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,508 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,508 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,508 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,508 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,508 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,509 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,509 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,509 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,509 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,509 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,509 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,510 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,510 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,510 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,510 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,511 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,511 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,511 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,511 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,511 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,512 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,513 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,513 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,513 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,513 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,513 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,514 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,514 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,514 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,514 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,515 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,515 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,515 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,515 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,515 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,515 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,516 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,516 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_5,QUANTIFIED] [2022-11-20 10:32:42,516 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2022-11-20 10:32:42,516 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2022-11-20 10:32:42,516 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,517 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,517 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,522 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,522 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] [2022-11-20 10:32:42,522 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,523 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_46,QUANTIFIED] [2022-11-20 10:32:42,523 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_test_fun_#t~mem7#1_26,QUANTIFIED] Derived loop invariant: ((((((\exists v_prenex_4 : int, v_prenex_3 : int, v_arrayElimCell_46 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_26 : int :: (((v_ULTIMATE.start_test_fun_#t~mem7#1_26 * v_arrayElimCell_46 <= v_prenex_3 && v_prenex_3 <= v_prenex_4) && v_prenex_4 * v_prenex_3 <= unknown-#memory_int-unknown[x_ref][x_ref]) && 2 <= v_arrayElimCell_46) && v_arrayElimCell_46 <= v_ULTIMATE.start_test_fun_#t~mem7#1_26) && 0 <= unknown-#memory_int-unknown[c][c]) && !(x_ref == c)) && unknown-#memory_int-unknown[c][c] <= 2) || (((0 <= unknown-#memory_int-unknown[c][c] && !(x_ref == c)) && (\exists v_prenex_4 : int, v_prenex_5 : int, v_prenex_3 : int, v_arrayElimCell_46 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_26 : int :: ((((v_prenex_5 * v_prenex_5 == unknown-#memory_int-unknown[x_ref][x_ref] && v_ULTIMATE.start_test_fun_#t~mem7#1_26 * v_arrayElimCell_46 <= v_prenex_3) && v_prenex_4 * v_prenex_3 <= v_prenex_5) && v_prenex_3 <= v_prenex_4) && 2 <= v_arrayElimCell_46) && v_arrayElimCell_46 <= v_ULTIMATE.start_test_fun_#t~mem7#1_26)) && unknown-#memory_int-unknown[c][c] <= 3)) || ((unknown-#memory_int-unknown[c][c] <= 0 && 0 <= unknown-#memory_int-unknown[c][c]) && !(x_ref == c))) || (((0 <= unknown-#memory_int-unknown[c][c] && unknown-#memory_int-unknown[c][c] <= 1) && !(x_ref == c)) && (\exists v_arrayElimCell_46 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_26 : int :: (2 <= v_arrayElimCell_46 && v_ULTIMATE.start_test_fun_#t~mem7#1_26 * v_arrayElimCell_46 <= unknown-#memory_int-unknown[x_ref][x_ref]) && v_arrayElimCell_46 <= v_ULTIMATE.start_test_fun_#t~mem7#1_26)) RESULT: Ultimate proved your program to be correct! [2022-11-20 10:32:42,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_596cef6b-96b2-4c08-936d-0e33a9506da1/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE