./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro --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 f49dce48b63f0ee8eed4ac47c25c384a83e3c23200b58c130c184e2b953e32f3 --- 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-8393723 [2022-11-18 20:06:22,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:06:22,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:06:22,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:06:22,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:06:22,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:06:22,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:06:22,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:06:22,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:06:22,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:06:22,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:06:22,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:06:22,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:06:22,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:06:22,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:06:22,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:06:22,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:06:22,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:06:22,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:06:22,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:06:22,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:06:22,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:06:22,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:06:22,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:06:22,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:06:22,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:06:22,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:06:22,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:06:22,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:06:22,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:06:22,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:06:22,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:06:22,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:06:22,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:06:22,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:06:22,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:06:22,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:06:22,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:06:22,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:06:22,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:06:22,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:06:22,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 20:06:22,553 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:06:22,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:06:22,557 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:06:22,558 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:06:22,559 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:06:22,559 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:06:22,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:06:22,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:06:22,561 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:06:22,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:06:22,562 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:06:22,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:06:22,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:06:22,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:06:22,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:06:22,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:06:22,563 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:06:22,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:06:22,564 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:06:22,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:06:22,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:06:22,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:06:22,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:06:22,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:06:22,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:06:22,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:06:22,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:06:22,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:06:22,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:06:22,566 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:06:22,566 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:06:22,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:06:22,567 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_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f49dce48b63f0ee8eed4ac47c25c384a83e3c23200b58c130c184e2b953e32f3 [2022-11-18 20:06:22,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:06:22,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:06:22,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:06:22,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:06:22,966 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:06:22,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i [2022-11-18 20:06:23,050 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/data/dbe993b61/f5724648975f45bd961c80c8e3f2e804/FLAG893185c03 [2022-11-18 20:06:23,628 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:06:23,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i [2022-11-18 20:06:23,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/data/dbe993b61/f5724648975f45bd961c80c8e3f2e804/FLAG893185c03 [2022-11-18 20:06:24,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/data/dbe993b61/f5724648975f45bd961c80c8e3f2e804 [2022-11-18 20:06:24,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:06:24,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:06:24,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:06:24,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:06:24,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:06:24,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7395efcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24, skipping insertion in model container [2022-11-18 20:06:24,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:06:24,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:06:24,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:06:24,446 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:06:24,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:06:24,533 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:06:24,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24 WrapperNode [2022-11-18 20:06:24,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:06:24,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:06:24,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:06:24,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:06:24,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,589 INFO L138 Inliner]: procedures = 111, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2022-11-18 20:06:24,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:06:24,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:06:24,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:06:24,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:06:24,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,628 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:06:24,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:06:24,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:06:24,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:06:24,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (1/1) ... [2022-11-18 20:06:24,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:06:24,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:06:24,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:06:24,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:06:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:06:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:06:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:06:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:06:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:06:24,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:06:24,856 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:06:24,858 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:06:24,977 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:06:24,982 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:06:24,982 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:06:24,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:06:24 BoogieIcfgContainer [2022-11-18 20:06:24,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:06:24,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:06:24,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:06:24,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:06:24,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:06:24" (1/3) ... [2022-11-18 20:06:24,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e6799c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:06:24, skipping insertion in model container [2022-11-18 20:06:24,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:24" (2/3) ... [2022-11-18 20:06:24,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e6799c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:06:24, skipping insertion in model container [2022-11-18 20:06:24,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:06:24" (3/3) ... [2022-11-18 20:06:24,992 INFO L112 eAbstractionObserver]: Analyzing ICFG c.01-no-inv-alloca.i [2022-11-18 20:06:25,009 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:06:25,010 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:06:25,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:06:25,066 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;@440e208d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:06:25,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 20:06:25,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 16 states have (on average 1.5625) internal successors, (25), 20 states have internal predecessors, (25), 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) [2022-11-18 20:06:25,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:06:25,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:25,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:25,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:06:25,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:25,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1806924603, now seen corresponding path program 1 times [2022-11-18 20:06:25,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:25,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120474188] [2022-11-18 20:06:25,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:25,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:25,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:25,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120474188] [2022-11-18 20:06:25,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120474188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:25,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:25,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:06:25,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083744747] [2022-11-18 20:06:25,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:25,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:06:25,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:25,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:06:25,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:06:25,442 INFO L87 Difference]: Start difference. First operand has 21 states, 16 states have (on average 1.5625) internal successors, (25), 20 states have internal predecessors, (25), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-18 20:06:25,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:25,464 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2022-11-18 20:06:25,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:06:25,466 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2022-11-18 20:06:25,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:25,476 INFO L225 Difference]: With dead ends: 40 [2022-11-18 20:06:25,476 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 20:06:25,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:06:25,490 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:25,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:06:25,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 20:06:25,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 20:06:25,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:25,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-18 20:06:25,543 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2022-11-18 20:06:25,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:25,543 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-18 20:06:25,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-18 20:06:25,544 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-18 20:06:25,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:06:25,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:25,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:25,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:06:25,547 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)] === [2022-11-18 20:06:25,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:25,550 INFO L85 PathProgramCache]: Analyzing trace with hash 179565772, now seen corresponding path program 1 times [2022-11-18 20:06:25,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:25,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413323227] [2022-11-18 20:06:25,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:25,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:25,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:25,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413323227] [2022-11-18 20:06:25,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413323227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:25,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:25,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:06:25,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284713346] [2022-11-18 20:06:25,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:25,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:06:25,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:25,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:06:25,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:06:25,919 INFO L87 Difference]: Start difference. First operand 16 states and 18 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) [2022-11-18 20:06:25,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:25,976 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-11-18 20:06:25,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:06:25,976 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 [2022-11-18 20:06:25,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:25,977 INFO L225 Difference]: With dead ends: 28 [2022-11-18 20:06:25,977 INFO L226 Difference]: Without dead ends: 26 [2022-11-18 20:06:25,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:06:25,979 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:25,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 28 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:06:25,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-18 20:06:25,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2022-11-18 20:06:25,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 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) [2022-11-18 20:06:25,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-11-18 20:06:25,984 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 8 [2022-11-18 20:06:25,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:25,985 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-18 20:06:25,985 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) [2022-11-18 20:06:25,985 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-11-18 20:06:25,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:06:25,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:25,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:25,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:06:25,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:06:25,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:25,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1271569968, now seen corresponding path program 1 times [2022-11-18 20:06:25,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:25,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129294271] [2022-11-18 20:06:25,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:25,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:26,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:26,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129294271] [2022-11-18 20:06:26,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129294271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:26,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:26,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:06:26,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320335260] [2022-11-18 20:06:26,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:26,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:06:26,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:26,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:06:26,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:06:26,248 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2022-11-18 20:06:26,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:26,323 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-11-18 20:06:26,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:06:26,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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 [2022-11-18 20:06:26,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:26,340 INFO L225 Difference]: With dead ends: 46 [2022-11-18 20:06:26,340 INFO L226 Difference]: Without dead ends: 27 [2022-11-18 20:06:26,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:06:26,342 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 21 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:26,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 30 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:06:26,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-18 20:06:26,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2022-11-18 20:06:26,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 21 states have internal predecessors, (26), 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) [2022-11-18 20:06:26,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-11-18 20:06:26,347 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 9 [2022-11-18 20:06:26,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:26,347 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-11-18 20:06:26,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2022-11-18 20:06:26,347 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-11-18 20:06:26,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:06:26,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:26,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:26,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:06:26,348 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)] === [2022-11-18 20:06:26,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:26,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1271629550, now seen corresponding path program 1 times [2022-11-18 20:06:26,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:26,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107616403] [2022-11-18 20:06:26,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:26,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:26,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:26,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:26,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107616403] [2022-11-18 20:06:26,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107616403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:26,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:26,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:06:26,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837222056] [2022-11-18 20:06:26,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:26,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:06:26,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:26,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:06:26,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:06:26,514 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2022-11-18 20:06:26,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:26,636 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2022-11-18 20:06:26,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:06:26,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 [2022-11-18 20:06:26,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:26,637 INFO L225 Difference]: With dead ends: 34 [2022-11-18 20:06:26,637 INFO L226 Difference]: Without dead ends: 33 [2022-11-18 20:06:26,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:06:26,639 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 27 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:26,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 36 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:06:26,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-18 20:06:26,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 24. [2022-11-18 20:06:26,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.4) internal successors, (28), 23 states have internal predecessors, (28), 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) [2022-11-18 20:06:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-11-18 20:06:26,644 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 9 [2022-11-18 20:06:26,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:26,645 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-18 20:06:26,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2022-11-18 20:06:26,645 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-11-18 20:06:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:06:26,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:26,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:26,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:06:26,646 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)] === [2022-11-18 20:06:26,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:26,647 INFO L85 PathProgramCache]: Analyzing trace with hash 765810456, now seen corresponding path program 1 times [2022-11-18 20:06:26,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:26,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217011715] [2022-11-18 20:06:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:26,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:26,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:26,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217011715] [2022-11-18 20:06:26,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217011715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:26,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:26,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:06:26,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351958287] [2022-11-18 20:06:26,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:26,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:06:26,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:06:26,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:06:26,805 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-11-18 20:06:26,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:26,855 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-11-18 20:06:26,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:06:26,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-11-18 20:06:26,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:26,857 INFO L225 Difference]: With dead ends: 24 [2022-11-18 20:06:26,857 INFO L226 Difference]: Without dead ends: 23 [2022-11-18 20:06:26,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:06:26,858 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 24 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:26,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 20 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:06:26,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-18 20:06:26,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-18 20:06:26,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:26,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-18 20:06:26,863 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 10 [2022-11-18 20:06:26,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:26,863 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-18 20:06:26,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-11-18 20:06:26,864 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-18 20:06:26,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 20:06:26,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:26,864 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:26,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:06:26,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:06:26,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:26,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1799421015, now seen corresponding path program 1 times [2022-11-18 20:06:26,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:26,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003624653] [2022-11-18 20:06:26,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:26,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:26,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:06:26,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:26,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003624653] [2022-11-18 20:06:26,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003624653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:26,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:26,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:06:26,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381270408] [2022-11-18 20:06:26,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:26,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:06:26,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:26,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:06:26,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:06:26,980 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-11-18 20:06:27,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:27,022 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2022-11-18 20:06:27,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:06:27,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) Word has length 13 [2022-11-18 20:06:27,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:27,023 INFO L225 Difference]: With dead ends: 23 [2022-11-18 20:06:27,024 INFO L226 Difference]: Without dead ends: 22 [2022-11-18 20:06:27,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:06:27,025 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:27,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 22 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:06:27,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-18 20:06:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-18 20:06:27,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 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) [2022-11-18 20:06:27,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-11-18 20:06:27,030 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 13 [2022-11-18 20:06:27,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:27,030 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-11-18 20:06:27,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-11-18 20:06:27,030 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-11-18 20:06:27,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:06:27,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:27,031 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:27,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:06:27,032 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)] === [2022-11-18 20:06:27,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:27,032 INFO L85 PathProgramCache]: Analyzing trace with hash -52525051, now seen corresponding path program 1 times [2022-11-18 20:06:27,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:27,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213123916] [2022-11-18 20:06:27,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:27,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:27,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:27,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:27,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213123916] [2022-11-18 20:06:27,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213123916] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:06:27,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836824673] [2022-11-18 20:06:27,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:27,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:27,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:06:27,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:06:27,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:06:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:27,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:06:27,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:06:27,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-18 20:06:27,482 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 28 treesize of output 16 [2022-11-18 20:06:27,521 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 15 treesize of output 7 [2022-11-18 20:06:27,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:27,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:06:27,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:27,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836824673] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:06:27,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:06:27,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-18 20:06:27,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855785317] [2022-11-18 20:06:27,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:06:27,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:06:27,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:27,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:06:27,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:06:27,607 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 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) [2022-11-18 20:06:27,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:27,782 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2022-11-18 20:06:27,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:06:27,783 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:06:27,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:27,785 INFO L225 Difference]: With dead ends: 65 [2022-11-18 20:06:27,785 INFO L226 Difference]: Without dead ends: 45 [2022-11-18 20:06:27,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:06:27,787 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:27,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 52 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:06:27,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-18 20:06:27,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31. [2022-11-18 20:06:27,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 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) [2022-11-18 20:06:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2022-11-18 20:06:27,793 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 14 [2022-11-18 20:06:27,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:27,793 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2022-11-18 20:06:27,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 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) [2022-11-18 20:06:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2022-11-18 20:06:27,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:06:27,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:27,795 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:27,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:06:28,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 20:06:28,004 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:06:28,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:28,004 INFO L85 PathProgramCache]: Analyzing trace with hash -52523321, now seen corresponding path program 1 times [2022-11-18 20:06:28,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:28,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502195524] [2022-11-18 20:06:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:28,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:28,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:28,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502195524] [2022-11-18 20:06:28,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502195524] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:06:28,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251504386] [2022-11-18 20:06:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:28,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:28,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:06:28,214 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:06:28,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:06:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:28,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:06:28,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:06:28,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-18 20:06:28,395 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 28 treesize of output 16 [2022-11-18 20:06:28,408 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 15 treesize of output 7 [2022-11-18 20:06:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:28,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:06:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:28,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251504386] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:06:28,485 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:06:28,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 20:06:28,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870771654] [2022-11-18 20:06:28,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:06:28,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:06:28,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:28,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:06:28,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:06:28,487 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 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) [2022-11-18 20:06:28,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:28,599 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2022-11-18 20:06:28,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:06:28,600 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:06:28,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:28,600 INFO L225 Difference]: With dead ends: 32 [2022-11-18 20:06:28,601 INFO L226 Difference]: Without dead ends: 31 [2022-11-18 20:06:28,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:06:28,602 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:28,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 60 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:06:28,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-18 20:06:28,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-11-18 20:06:28,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 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) [2022-11-18 20:06:28,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2022-11-18 20:06:28,612 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2022-11-18 20:06:28,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:28,613 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-11-18 20:06:28,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 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) [2022-11-18 20:06:28,613 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2022-11-18 20:06:28,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:06:28,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:28,618 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:28,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:06:28,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:28,824 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)] === [2022-11-18 20:06:28,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:28,824 INFO L85 PathProgramCache]: Analyzing trace with hash -52465469, now seen corresponding path program 1 times [2022-11-18 20:06:28,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:28,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261748242] [2022-11-18 20:06:28,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:28,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:29,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:29,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:29,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261748242] [2022-11-18 20:06:29,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261748242] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:06:29,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621345625] [2022-11-18 20:06:29,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:29,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:29,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:06:29,062 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:06:29,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:06:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:29,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 20:06:29,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:06:29,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-18 20:06:29,242 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 28 treesize of output 16 [2022-11-18 20:06:29,390 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 15 treesize of output 7 [2022-11-18 20:06:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:29,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:06:29,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:29,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621345625] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:06:29,654 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:06:29,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2022-11-18 20:06:29,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495067757] [2022-11-18 20:06:29,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:06:29,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 20:06:29,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:29,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:06:29,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:06:29,656 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 17 states have internal predecessors, (33), 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) [2022-11-18 20:06:29,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:29,927 INFO L93 Difference]: Finished difference Result 56 states and 69 transitions. [2022-11-18 20:06:29,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:06:29,928 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:06:29,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:29,928 INFO L225 Difference]: With dead ends: 56 [2022-11-18 20:06:29,928 INFO L226 Difference]: Without dead ends: 55 [2022-11-18 20:06:29,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:06:29,929 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 28 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:29,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 39 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 55 Unchecked, 0.1s Time] [2022-11-18 20:06:29,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-18 20:06:29,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 41. [2022-11-18 20:06:29,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 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) [2022-11-18 20:06:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2022-11-18 20:06:29,935 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 14 [2022-11-18 20:06:29,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:29,935 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2022-11-18 20:06:29,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 17 states have internal predecessors, (33), 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) [2022-11-18 20:06:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2022-11-18 20:06:29,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:06:29,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:29,936 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:29,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:06:30,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:30,137 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)] === [2022-11-18 20:06:30,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:30,138 INFO L85 PathProgramCache]: Analyzing trace with hash 627592901, now seen corresponding path program 1 times [2022-11-18 20:06:30,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:30,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343003139] [2022-11-18 20:06:30,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:30,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:30,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:30,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:30,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343003139] [2022-11-18 20:06:30,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343003139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:30,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:30,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:06:30,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189866406] [2022-11-18 20:06:30,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:30,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:06:30,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:30,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:06:30,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:06:30,195 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-18 20:06:30,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:30,205 INFO L93 Difference]: Finished difference Result 71 states and 91 transitions. [2022-11-18 20:06:30,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:06:30,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:06:30,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:30,206 INFO L225 Difference]: With dead ends: 71 [2022-11-18 20:06:30,206 INFO L226 Difference]: Without dead ends: 32 [2022-11-18 20:06:30,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:06:30,207 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:30,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:06:30,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-18 20:06:30,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2022-11-18 20:06:30,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 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) [2022-11-18 20:06:30,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-11-18 20:06:30,211 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 14 [2022-11-18 20:06:30,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:30,211 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-11-18 20:06:30,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-18 20:06:30,212 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-11-18 20:06:30,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:06:30,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:30,212 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:30,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:06:30,213 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:06:30,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:30,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1030103323, now seen corresponding path program 2 times [2022-11-18 20:06:30,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:30,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994560448] [2022-11-18 20:06:30,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:30,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:30,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:30,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994560448] [2022-11-18 20:06:30,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994560448] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:06:30,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341400520] [2022-11-18 20:06:30,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:06:30,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:30,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:06:30,551 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:06:30,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:06:30,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:06:30,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:06:30,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 20:06:30,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:06:30,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-18 20:06:30,730 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 28 treesize of output 16 [2022-11-18 20:06:30,772 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 28 treesize of output 16 [2022-11-18 20:06:30,810 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 28 treesize of output 16 [2022-11-18 20:06:30,829 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 15 treesize of output 7 [2022-11-18 20:06:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:30,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:06:30,964 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:30,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341400520] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:06:30,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:06:30,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2022-11-18 20:06:30,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083839658] [2022-11-18 20:06:30,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:06:30,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 20:06:30,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:30,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 20:06:30,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:06:30,968 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 21 states have internal predecessors, (54), 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) [2022-11-18 20:06:31,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:31,245 INFO L93 Difference]: Finished difference Result 109 states and 127 transitions. [2022-11-18 20:06:31,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 20:06:31,245 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 21 states have internal predecessors, (54), 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 24 [2022-11-18 20:06:31,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:31,246 INFO L225 Difference]: With dead ends: 109 [2022-11-18 20:06:31,246 INFO L226 Difference]: Without dead ends: 81 [2022-11-18 20:06:31,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=732, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:06:31,248 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 84 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:31,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 80 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:06:31,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-18 20:06:31,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 50. [2022-11-18 20:06:31,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 49 states have internal predecessors, (59), 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) [2022-11-18 20:06:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2022-11-18 20:06:31,254 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 24 [2022-11-18 20:06:31,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:31,255 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2022-11-18 20:06:31,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 21 states have internal predecessors, (54), 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) [2022-11-18 20:06:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2022-11-18 20:06:31,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:06:31,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:31,256 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:31,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:06:31,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:06:31,462 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:06:31,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:31,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1030043741, now seen corresponding path program 2 times [2022-11-18 20:06:31,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:31,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276520779] [2022-11-18 20:06:31,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:31,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:06:31,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:31,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276520779] [2022-11-18 20:06:31,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276520779] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:06:31,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918961438] [2022-11-18 20:06:31,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:06:31,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:31,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:06:31,695 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:06:31,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:06:31,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:06:31,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:06:31,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 20:06:31,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:06:31,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-18 20:06:31,861 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 28 treesize of output 16 [2022-11-18 20:06:31,904 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 28 treesize of output 16 [2022-11-18 20:06:31,948 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 28 treesize of output 16 [2022-11-18 20:06:32,125 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:06:32,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2022-11-18 20:06:32,142 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:32,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:06:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:32,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918961438] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:06:32,720 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:06:32,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 11] total 27 [2022-11-18 20:06:32,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592062725] [2022-11-18 20:06:32,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:06:32,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-18 20:06:32,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:32,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-18 20:06:32,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2022-11-18 20:06:32,725 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 28 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 28 states have internal predecessors, (60), 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) [2022-11-18 20:06:35,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:35,558 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2022-11-18 20:06:35,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-18 20:06:35,561 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 28 states have internal predecessors, (60), 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 24 [2022-11-18 20:06:35,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:35,562 INFO L225 Difference]: With dead ends: 62 [2022-11-18 20:06:35,562 INFO L226 Difference]: Without dead ends: 61 [2022-11-18 20:06:35,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=393, Invalid=1412, Unknown=1, NotChecked=0, Total=1806 [2022-11-18 20:06:35,563 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 92 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:35,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 25 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 96 Invalid, 0 Unknown, 78 Unchecked, 0.1s Time] [2022-11-18 20:06:35,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-18 20:06:35,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 49. [2022-11-18 20:06:35,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 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) [2022-11-18 20:06:35,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2022-11-18 20:06:35,569 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 24 [2022-11-18 20:06:35,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:35,569 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2022-11-18 20:06:35,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 28 states have internal predecessors, (60), 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) [2022-11-18 20:06:35,570 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2022-11-18 20:06:35,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 20:06:35,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:35,574 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:35,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:06:35,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:06:35,781 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:06:35,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:35,781 INFO L85 PathProgramCache]: Analyzing trace with hash -112638811, now seen corresponding path program 3 times [2022-11-18 20:06:35,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:35,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208320244] [2022-11-18 20:06:35,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:35,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:36,738 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:36,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:36,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208320244] [2022-11-18 20:06:36,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208320244] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:06:36,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987909019] [2022-11-18 20:06:36,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:06:36,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:36,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:06:36,743 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:06:36,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:06:36,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-18 20:06:36,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:06:36,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-18 20:06:36,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:06:36,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-18 20:06:37,002 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 28 treesize of output 16 [2022-11-18 20:06:37,041 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 28 treesize of output 16 [2022-11-18 20:06:37,112 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 28 treesize of output 16 [2022-11-18 20:06:37,151 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 28 treesize of output 16 [2022-11-18 20:06:37,190 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 28 treesize of output 16 [2022-11-18 20:06:37,233 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 28 treesize of output 16 [2022-11-18 20:06:37,282 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 28 treesize of output 16 [2022-11-18 20:06:37,297 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 15 treesize of output 7 [2022-11-18 20:06:37,305 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:37,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:06:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:37,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987909019] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:06:37,721 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:06:37,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 41 [2022-11-18 20:06:37,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628731001] [2022-11-18 20:06:37,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:06:37,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-18 20:06:37,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:37,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-18 20:06:37,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=494, Invalid=1146, Unknown=0, NotChecked=0, Total=1640 [2022-11-18 20:06:37,724 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 41 states, 41 states have (on average 2.5853658536585367) internal successors, (106), 41 states have internal predecessors, (106), 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) [2022-11-18 20:06:38,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:38,367 INFO L93 Difference]: Finished difference Result 198 states and 232 transitions. [2022-11-18 20:06:38,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-18 20:06:38,368 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.5853658536585367) internal successors, (106), 41 states have internal predecessors, (106), 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 44 [2022-11-18 20:06:38,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:38,369 INFO L225 Difference]: With dead ends: 198 [2022-11-18 20:06:38,369 INFO L226 Difference]: Without dead ends: 151 [2022-11-18 20:06:38,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1254 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=968, Invalid=3064, Unknown=0, NotChecked=0, Total=4032 [2022-11-18 20:06:38,371 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 227 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:38,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 102 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:06:38,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-18 20:06:38,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 89. [2022-11-18 20:06:38,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.2045454545454546) internal successors, (106), 88 states have internal predecessors, (106), 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) [2022-11-18 20:06:38,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 106 transitions. [2022-11-18 20:06:38,386 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 106 transitions. Word has length 44 [2022-11-18 20:06:38,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:38,387 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 106 transitions. [2022-11-18 20:06:38,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.5853658536585367) internal successors, (106), 41 states have internal predecessors, (106), 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) [2022-11-18 20:06:38,387 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 106 transitions. [2022-11-18 20:06:38,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-18 20:06:38,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:38,389 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:38,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:06:38,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:06:38,597 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:06:38,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:38,598 INFO L85 PathProgramCache]: Analyzing trace with hash 315813925, now seen corresponding path program 4 times [2022-11-18 20:06:38,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:38,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215664329] [2022-11-18 20:06:38,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:38,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:41,804 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:41,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:41,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215664329] [2022-11-18 20:06:41,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215664329] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:06:41,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214890069] [2022-11-18 20:06:41,805 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:06:41,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:41,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:06:41,806 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:06:41,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:06:41,986 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:06:41,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:06:41,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-18 20:06:42,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:06:42,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-18 20:06:42,057 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 28 treesize of output 16 [2022-11-18 20:06:42,087 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 28 treesize of output 16 [2022-11-18 20:06:42,121 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 28 treesize of output 16 [2022-11-18 20:06:42,157 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 28 treesize of output 16 [2022-11-18 20:06:42,197 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 28 treesize of output 16 [2022-11-18 20:06:42,234 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 28 treesize of output 16 [2022-11-18 20:06:42,271 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 28 treesize of output 16 [2022-11-18 20:06:42,320 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 28 treesize of output 16 [2022-11-18 20:06:42,379 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 28 treesize of output 16 [2022-11-18 20:06:42,420 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 28 treesize of output 16 [2022-11-18 20:06:42,465 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 28 treesize of output 16 [2022-11-18 20:06:42,514 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 28 treesize of output 16 [2022-11-18 20:06:42,574 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 28 treesize of output 16 [2022-11-18 20:06:42,625 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 28 treesize of output 16 [2022-11-18 20:06:42,680 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 28 treesize of output 16 [2022-11-18 20:06:42,692 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 15 treesize of output 7 [2022-11-18 20:06:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:42,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:06:44,009 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:44,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214890069] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:06:44,009 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:06:44,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 81 [2022-11-18 20:06:44,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264853570] [2022-11-18 20:06:44,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:06:44,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-11-18 20:06:44,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:44,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-11-18 20:06:44,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1946, Invalid=4534, Unknown=0, NotChecked=0, Total=6480 [2022-11-18 20:06:44,014 INFO L87 Difference]: Start difference. First operand 89 states and 106 transitions. Second operand has 81 states, 81 states have (on average 2.5925925925925926) internal successors, (210), 81 states have internal predecessors, (210), 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) [2022-11-18 20:06:45,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:45,900 INFO L93 Difference]: Finished difference Result 373 states and 437 transitions. [2022-11-18 20:06:45,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-11-18 20:06:45,900 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 81 states have (on average 2.5925925925925926) internal successors, (210), 81 states have internal predecessors, (210), 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 84 [2022-11-18 20:06:45,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:45,903 INFO L225 Difference]: With dead ends: 373 [2022-11-18 20:06:45,903 INFO L226 Difference]: Without dead ends: 286 [2022-11-18 20:06:45,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5406 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=3616, Invalid=12134, Unknown=0, NotChecked=0, Total=15750 [2022-11-18 20:06:45,912 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 480 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:45,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 139 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:06:45,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-11-18 20:06:45,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 164. [2022-11-18 20:06:45,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 163 states have (on average 1.2024539877300613) internal successors, (196), 163 states have internal predecessors, (196), 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) [2022-11-18 20:06:45,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 196 transitions. [2022-11-18 20:06:45,948 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 196 transitions. Word has length 84 [2022-11-18 20:06:45,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:45,950 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 196 transitions. [2022-11-18 20:06:45,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 2.5925925925925926) internal successors, (210), 81 states have internal predecessors, (210), 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) [2022-11-18 20:06:45,951 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 196 transitions. [2022-11-18 20:06:45,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-18 20:06:45,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:45,962 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:45,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-18 20:06:46,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:46,167 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:06:46,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:46,168 INFO L85 PathProgramCache]: Analyzing trace with hash -330011888, now seen corresponding path program 5 times [2022-11-18 20:06:46,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:46,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132284565] [2022-11-18 20:06:46,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:46,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:48,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2022-11-18 20:06:48,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:48,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132284565] [2022-11-18 20:06:48,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132284565] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:06:48,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949317844] [2022-11-18 20:06:48,937 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:06:48,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:48,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:06:48,938 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:06:48,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:06:55,273 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2022-11-18 20:06:55,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:06:55,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-18 20:06:55,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:06:55,351 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-18 20:06:55,351 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 104 [2022-11-18 20:06:55,448 INFO L321 Elim1Store]: treesize reduction 141, result has 25.4 percent of original size [2022-11-18 20:06:55,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 96 treesize of output 196 [2022-11-18 20:06:55,469 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 [2022-11-18 20:06:55,493 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 [2022-11-18 20:06:55,559 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 [2022-11-18 20:06:55,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 62 [2022-11-18 20:06:55,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:06:55,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:06:55,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 20:06:55,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:06:55,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:06:55,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 20:06:55,744 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 [2022-11-18 20:06:55,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:06:55,918 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2022-11-18 20:06:55,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 180 treesize of output 170 [2022-11-18 20:06:55,929 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 [2022-11-18 20:06:56,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:06:56,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 165 [2022-11-18 20:06:56,016 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:06:56,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:06:56,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 92 [2022-11-18 20:06:56,052 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 [2022-11-18 20:06:56,450 INFO L321 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-18 20:06:56,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 138 treesize of output 100 [2022-11-18 20:06:56,456 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 98 treesize of output 88 [2022-11-18 20:06:56,519 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 30 treesize of output 24 [2022-11-18 20:06:56,533 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 37 treesize of output 29 [2022-11-18 20:06:56,539 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 30 treesize of output 24 [2022-11-18 20:06:57,069 INFO L321 Elim1Store]: treesize reduction 54, result has 49.1 percent of original size [2022-11-18 20:06:57,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 105 treesize of output 135 [2022-11-18 20:06:57,120 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 7 treesize of output 5 [2022-11-18 20:06:57,296 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 19 treesize of output 15 [2022-11-18 20:06:57,380 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 19 treesize of output 15 [2022-11-18 20:06:57,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:06:57,589 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 16 treesize of output 14 [2022-11-18 20:06:57,912 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:06:57,913 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 1 case distinctions, treesize of input 18 treesize of output 24 [2022-11-18 20:06:57,982 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:06:57,982 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 1 case distinctions, treesize of input 18 treesize of output 24 [2022-11-18 20:06:58,053 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:06:58,054 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 1 case distinctions, treesize of input 18 treesize of output 24 [2022-11-18 20:06:58,108 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:06:58,108 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 1 case distinctions, treesize of input 18 treesize of output 24 [2022-11-18 20:06:58,165 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:06:58,166 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 1 case distinctions, treesize of input 18 treesize of output 24 [2022-11-18 20:06:58,226 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-18 20:06:58,226 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 1 case distinctions, treesize of input 23 treesize of output 26 [2022-11-18 20:06:58,383 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 20:06:58,384 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 27 treesize of output 29 [2022-11-18 20:06:58,395 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 11 treesize of output 9 [2022-11-18 20:06:58,456 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 [2022-11-18 20:06:58,493 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 [2022-11-18 20:06:58,528 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 [2022-11-18 20:06:58,561 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 [2022-11-18 20:06:58,594 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 [2022-11-18 20:06:58,631 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 [2022-11-18 20:06:58,671 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 [2022-11-18 20:06:58,707 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 [2022-11-18 20:06:58,743 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 [2022-11-18 20:06:58,780 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 [2022-11-18 20:06:58,817 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 [2022-11-18 20:06:58,852 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 [2022-11-18 20:06:58,887 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 [2022-11-18 20:06:58,923 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 [2022-11-18 20:06:58,957 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 [2022-11-18 20:06:58,993 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 [2022-11-18 20:06:59,030 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 [2022-11-18 20:06:59,068 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 [2022-11-18 20:06:59,105 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 [2022-11-18 20:06:59,143 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 [2022-11-18 20:06:59,180 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 14 treesize of output 16 [2022-11-18 20:06:59,214 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 [2022-11-18 20:06:59,249 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 [2022-11-18 20:06:59,286 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 15 treesize of output 7 [2022-11-18 20:06:59,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 919 refuted. 0 times theorem prover too weak. 1346 trivial. 0 not checked. [2022-11-18 20:06:59,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:06:59,834 WARN L837 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_915 Int)) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~y_ref~0#1.offset| v_ArrVal_915)) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|) (+ v_ArrVal_915 1))) (forall ((v_ArrVal_940 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_ArrVal_940) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|) 2147483648))) is different from false [2022-11-18 20:06:59,867 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:06:59,868 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-18 20:07:00,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 636 proven. 97 refuted. 0 times theorem prover too weak. 1384 trivial. 148 not checked. [2022-11-18 20:07:00,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949317844] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:07:00,113 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:07:00,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 19 [2022-11-18 20:07:00,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255661861] [2022-11-18 20:07:00,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:07:00,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 20:07:00,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:00,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 20:07:00,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=248, Unknown=11, NotChecked=34, Total=380 [2022-11-18 20:07:00,117 INFO L87 Difference]: Start difference. First operand 164 states and 196 transitions. Second operand has 20 states, 19 states have (on average 3.210526315789474) internal successors, (61), 20 states have internal predecessors, (61), 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) [2022-11-18 20:07:00,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:07:00,592 INFO L93 Difference]: Finished difference Result 327 states and 392 transitions. [2022-11-18 20:07:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:07:00,593 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.210526315789474) internal successors, (61), 20 states have internal predecessors, (61), 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 159 [2022-11-18 20:07:00,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:07:00,593 INFO L225 Difference]: With dead ends: 327 [2022-11-18 20:07:00,593 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:07:00,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 336 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=204, Invalid=488, Unknown=14, NotChecked=50, Total=756 [2022-11-18 20:07:00,598 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 45 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:07:00,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 35 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 51 Unchecked, 0.1s Time] [2022-11-18 20:07:00,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:07:00,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:07:00,600 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) [2022-11-18 20:07:00,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:07:00,601 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 159 [2022-11-18 20:07:00,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:07:00,601 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:07:00,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.210526315789474) internal successors, (61), 20 states have internal predecessors, (61), 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) [2022-11-18 20:07:00,601 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:07:00,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:07:00,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-18 20:07:00,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-18 20:07:00,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-18 20:07:00,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-18 20:07:00,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:00,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:07:00,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:07:01,632 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-18 20:07:01,633 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:07:01,633 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 560) no Hoare annotation was computed. [2022-11-18 20:07:01,633 INFO L902 garLoopResultBuilder]: At program point L562(lines 547 563) the Hoare annotation is: true [2022-11-18 20:07:01,633 INFO L899 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2022-11-18 20:07:01,633 INFO L899 garLoopResultBuilder]: For program point L560-1(line 560) no Hoare annotation was computed. [2022-11-18 20:07:01,633 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-11-18 20:07:01,633 INFO L899 garLoopResultBuilder]: For program point L558-1(line 558) no Hoare annotation was computed. [2022-11-18 20:07:01,634 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:07:01,634 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-18 20:07:01,634 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 560) no Hoare annotation was computed. [2022-11-18 20:07:01,634 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:07:01,634 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:07:01,634 INFO L902 garLoopResultBuilder]: At program point L565(lines 564 566) the Hoare annotation is: true [2022-11-18 20:07:01,635 INFO L899 garLoopResultBuilder]: For program point L557-1(line 557) no Hoare annotation was computed. [2022-11-18 20:07:01,635 INFO L899 garLoopResultBuilder]: For program point L555-1(lines 555 561) no Hoare annotation was computed. [2022-11-18 20:07:01,635 INFO L899 garLoopResultBuilder]: For program point L557-3(lines 557 559) no Hoare annotation was computed. [2022-11-18 20:07:01,635 INFO L895 garLoopResultBuilder]: At program point L557-5(lines 557 559) the Hoare annotation is: (let ((.cse2 (select (select |#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) |ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (let ((.cse0 (not (= |ULTIMATE.start_test_fun_~y_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (.cse1 (select (select |#memory_int| |ULTIMATE.start_test_fun_~y_ref~0#1.base|) |ULTIMATE.start_test_fun_~y_ref~0#1.offset|)) (.cse3 (<= 0 .cse2))) (or (and .cse0 (<= .cse1 2147483646) (<= .cse2 2147483648) .cse3 (<= 2 .cse1)) (and .cse0 (< .cse2 2147483649) (= .cse1 1) .cse3)))) [2022-11-18 20:07:01,635 INFO L895 garLoopResultBuilder]: At program point L555-3(lines 555 561) the Hoare annotation is: (and (not (= |ULTIMATE.start_test_fun_~y_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (<= (select (select |#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) |ULTIMATE.start_test_fun_~x_ref~0#1.offset|) 2147483647)) [2022-11-18 20:07:01,635 INFO L899 garLoopResultBuilder]: For program point L557-6(lines 557 559) no Hoare annotation was computed. [2022-11-18 20:07:01,636 INFO L899 garLoopResultBuilder]: For program point L555-4(lines 555 561) no Hoare annotation was computed. [2022-11-18 20:07:01,639 INFO L444 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:01,641 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:07:01,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:07:01 BoogieIcfgContainer [2022-11-18 20:07:01,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:07:01,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:07:01,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:07:01,658 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:07:01,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:06:24" (3/4) ... [2022-11-18 20:07:01,662 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:07:01,672 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-18 20:07:01,673 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:07:01,673 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:07:01,673 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:07:01,706 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:07:01,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:07:01,707 INFO L158 Benchmark]: Toolchain (without parser) took 37647.96ms. Allocated memory was 130.0MB in the beginning and 488.6MB in the end (delta: 358.6MB). Free memory was 89.6MB in the beginning and 318.7MB in the end (delta: -229.2MB). Peak memory consumption was 128.9MB. Max. memory is 16.1GB. [2022-11-18 20:07:01,707 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:07:01,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.43ms. Allocated memory is still 130.0MB. Free memory was 89.3MB in the beginning and 97.6MB in the end (delta: -8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:07:01,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.05ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 95.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:07:01,708 INFO L158 Benchmark]: Boogie Preprocessor took 46.87ms. Allocated memory is still 130.0MB. Free memory was 95.9MB in the beginning and 94.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:07:01,708 INFO L158 Benchmark]: RCFGBuilder took 345.59ms. Allocated memory is still 130.0MB. Free memory was 94.4MB in the beginning and 82.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:07:01,709 INFO L158 Benchmark]: TraceAbstraction took 36671.77ms. Allocated memory was 130.0MB in the beginning and 488.6MB in the end (delta: 358.6MB). Free memory was 81.9MB in the beginning and 321.9MB in the end (delta: -240.0MB). Peak memory consumption was 269.6MB. Max. memory is 16.1GB. [2022-11-18 20:07:01,709 INFO L158 Benchmark]: Witness Printer took 48.27ms. Allocated memory is still 488.6MB. Free memory was 321.9MB in the beginning and 318.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:07:01,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.43ms. Allocated memory is still 130.0MB. Free memory was 89.3MB in the beginning and 97.6MB in the end (delta: -8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.05ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 95.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.87ms. Allocated memory is still 130.0MB. Free memory was 95.9MB in the beginning and 94.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.59ms. Allocated memory is still 130.0MB. Free memory was 94.4MB in the beginning and 82.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 36671.77ms. Allocated memory was 130.0MB in the beginning and 488.6MB in the end (delta: 358.6MB). Free memory was 81.9MB in the beginning and 321.9MB in the end (delta: -240.0MB). Peak memory consumption was 269.6MB. Max. memory is 16.1GB. * Witness Printer took 48.27ms. Allocated memory is still 488.6MB. Free memory was 321.9MB in the beginning and 318.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 560]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 560]: 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, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 36.6s, OverallIterations: 15, TraceHistogramMax: 31, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1090 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1090 mSDsluCounter, 714 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 184 IncrementalHoareTripleChecker+Unchecked, 570 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1195 IncrementalHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 144 mSDtfsCounter, 1195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1024 GetRequests, 662 SyntacticMatches, 5 SemanticMatches, 357 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7733 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=14, InterpolantAutomatonStates: 274, 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, 15 MinimizatonAttempts, 277 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 71 NumberOfFragments, 74 HoareAnnotationTreeSize, 4 FomulaSimplifications, 782 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 4 FomulaSimplificationsInter, 2956 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 6.9s SatisfiabilityAnalysisTime, 18.4s InterpolantComputationTime, 824 NumberOfCodeBlocks, 824 NumberOfCodeBlocksAsserted, 63 NumberOfCheckSat, 1170 ConstructedInterpolants, 180 QuantifiedInterpolants, 11634 SizeOfPredicates, 61 NumberOfNonLiveVariables, 1997 ConjunctsInSsa, 234 ConjunctsInUnsatCore, 31 InterpolantComputations, 7 PerfectInterpolantSequences, 5634/9067 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: 564]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: ((((!(y_ref == x_ref) && unknown-#memory_int-unknown[y_ref][y_ref] <= 2147483646) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483648) && 0 <= unknown-#memory_int-unknown[x_ref][x_ref]) && 2 <= unknown-#memory_int-unknown[y_ref][y_ref]) || (((!(y_ref == x_ref) && unknown-#memory_int-unknown[x_ref][x_ref] < 2147483649) && unknown-#memory_int-unknown[y_ref][y_ref] == 1) && 0 <= unknown-#memory_int-unknown[x_ref][x_ref]) - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: !(y_ref == x_ref) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483647 - InvariantResult [Line: 547]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 20:07:01,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617e2c61-52e4-43b8-85d3-8a121d853314/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE