./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/c.07-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/c.07-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 93b4a0ba0c9f7effb12d2a47608c061d55502e7c43d58dada73542f7a20a21c1 --- 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-b5237d8 [2022-11-22 01:17:58,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:17:58,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:17:58,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:17:58,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:17:58,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:17:58,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:17:58,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:17:58,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:17:58,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:17:58,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:17:58,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:17:58,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:17:58,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:17:58,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:17:58,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:17:58,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:17:58,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:17:58,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:17:58,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:17:58,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:17:58,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:17:58,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:17:58,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:17:58,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:17:58,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:17:58,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:17:58,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:17:58,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:17:58,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:17:58,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:17:58,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:17:58,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:17:58,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:17:58,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:17:58,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:17:58,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:17:58,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:17:58,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:17:58,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:17:58,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:17:58,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:17:58,616 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:17:58,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:17:58,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:17:58,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:17:58,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:17:58,618 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:17:58,618 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:17:58,619 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:17:58,619 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:17:58,619 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:17:58,619 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:17:58,620 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:17:58,620 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:17:58,620 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:17:58,620 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:17:58,621 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:17:58,621 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:17:58,621 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:17:58,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:17:58,622 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:17:58,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:17:58,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:17:58,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:17:58,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:17:58,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:17:58,624 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:17:58,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:17:58,624 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:17:58,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:17:58,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:17:58,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:17:58,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:17:58,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:17:58,626 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:17:58,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:17:58,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:17:58,626 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:17:58,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:17:58,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:17:58,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:17:58,627 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_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93b4a0ba0c9f7effb12d2a47608c061d55502e7c43d58dada73542f7a20a21c1 [2022-11-22 01:17:58,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:17:58,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:17:58,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:17:58,900 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:17:58,901 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:17:58,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/termination-memory-alloca/c.07-alloca.i [2022-11-22 01:18:01,971 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:18:02,207 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:18:02,208 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/sv-benchmarks/c/termination-memory-alloca/c.07-alloca.i [2022-11-22 01:18:02,219 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/data/570c2f868/972f4b9bc8e94d38acdda430d85497ca/FLAG342143339 [2022-11-22 01:18:02,234 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/data/570c2f868/972f4b9bc8e94d38acdda430d85497ca [2022-11-22 01:18:02,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:18:02,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:18:02,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:18:02,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:18:02,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:18:02,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d40734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02, skipping insertion in model container [2022-11-22 01:18:02,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:18:02,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:18:02,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:18:02,605 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:18:02,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:18:02,699 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:18:02,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02 WrapperNode [2022-11-22 01:18:02,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:18:02,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:18:02,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:18:02,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:18:02,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,760 INFO L138 Inliner]: procedures = 111, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 100 [2022-11-22 01:18:02,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:18:02,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:18:02,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:18:02,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:18:02,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:18:02,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:18:02,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:18:02,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:18:02,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (1/1) ... [2022-11-22 01:18:02,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:18:02,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:18:02,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:18:02,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:18:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:18:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:18:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:18:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:18:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:18:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:18:02,995 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:18:02,997 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:18:03,210 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:18:03,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:18:03,337 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:18:03,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:18:03 BoogieIcfgContainer [2022-11-22 01:18:03,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:18:03,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:18:03,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:18:03,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:18:03,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:18:02" (1/3) ... [2022-11-22 01:18:03,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee8270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:18:03, skipping insertion in model container [2022-11-22 01:18:03,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:02" (2/3) ... [2022-11-22 01:18:03,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee8270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:18:03, skipping insertion in model container [2022-11-22 01:18:03,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:18:03" (3/3) ... [2022-11-22 01:18:03,362 INFO L112 eAbstractionObserver]: Analyzing ICFG c.07-alloca.i [2022-11-22 01:18:03,384 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:18:03,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 01:18:03,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:18:03,452 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@d300646, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:18:03,452 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-22 01:18:03,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 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) [2022-11-22 01:18:03,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:18:03,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:03,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:18:03,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:18:03,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:03,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2284137, now seen corresponding path program 1 times [2022-11-22 01:18:03,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:03,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268887016] [2022-11-22 01:18:03,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:03,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:04,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:04,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:04,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268887016] [2022-11-22 01:18:04,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268887016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:04,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:04,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:18:04,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328249067] [2022-11-22 01:18:04,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:04,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:18:04,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:04,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:18:04,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:18:04,906 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 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) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:18:04,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:04,963 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-22 01:18:04,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:18:04,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 01:18:04,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:04,973 INFO L225 Difference]: With dead ends: 15 [2022-11-22 01:18:04,973 INFO L226 Difference]: Without dead ends: 10 [2022-11-22 01:18:04,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:18:04,980 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:04,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:18:04,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-22 01:18:05,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-22 01:18:05,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 9 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) [2022-11-22 01:18:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-11-22 01:18:05,011 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2022-11-22 01:18:05,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:05,012 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-11-22 01:18:05,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:18:05,012 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-11-22 01:18:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:18:05,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:05,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:18:05,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:18:05,014 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:18:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash 70808306, now seen corresponding path program 1 times [2022-11-22 01:18:05,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:05,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914438581] [2022-11-22 01:18:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:05,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:07,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:07,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914438581] [2022-11-22 01:18:07,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914438581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:07,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:07,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:18:07,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713309239] [2022-11-22 01:18:07,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:07,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:18:07,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:07,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:18:07,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:18:07,297 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:18:07,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:07,419 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-22 01:18:07,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:18:07,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:18:07,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:07,420 INFO L225 Difference]: With dead ends: 15 [2022-11-22 01:18:07,420 INFO L226 Difference]: Without dead ends: 14 [2022-11-22 01:18:07,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:18:07,426 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:07,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 17 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:18:07,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-22 01:18:07,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-22 01:18:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 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) [2022-11-22 01:18:07,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-22 01:18:07,438 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2022-11-22 01:18:07,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:07,442 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-22 01:18:07,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:18:07,442 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-22 01:18:07,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:18:07,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:07,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:18:07,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:18:07,445 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)] === [2022-11-22 01:18:07,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:07,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2099909749, now seen corresponding path program 1 times [2022-11-22 01:18:07,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:07,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082092994] [2022-11-22 01:18:07,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:07,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:08,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:08,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082092994] [2022-11-22 01:18:08,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082092994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:08,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:08,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:18:08,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160183297] [2022-11-22 01:18:08,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:08,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:18:08,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:08,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:18:08,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:18:08,328 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:18:08,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:08,488 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-22 01:18:08,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:18:08,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 01:18:08,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:08,490 INFO L225 Difference]: With dead ends: 17 [2022-11-22 01:18:08,490 INFO L226 Difference]: Without dead ends: 16 [2022-11-22 01:18:08,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:18:08,498 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:08,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 6 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:18:08,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-22 01:18:08,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2022-11-22 01:18:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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) [2022-11-22 01:18:08,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-22 01:18:08,507 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2022-11-22 01:18:08,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:08,507 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-22 01:18:08,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:18:08,508 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-22 01:18:08,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:18:08,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:08,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:18:08,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:18:08,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:18:08,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:08,512 INFO L85 PathProgramCache]: Analyzing trace with hash -672692716, now seen corresponding path program 1 times [2022-11-22 01:18:08,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:08,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431359909] [2022-11-22 01:18:08,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:08,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:09,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:09,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:09,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431359909] [2022-11-22 01:18:09,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431359909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:09,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:09,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:18:09,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322973667] [2022-11-22 01:18:09,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:09,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:18:09,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:09,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:18:09,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:18:09,071 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:18:09,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:09,202 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-11-22 01:18:09,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:18:09,203 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 01:18:09,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:09,203 INFO L225 Difference]: With dead ends: 13 [2022-11-22 01:18:09,204 INFO L226 Difference]: Without dead ends: 12 [2022-11-22 01:18:09,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:18:09,205 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:09,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:18:09,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-22 01:18:09,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-22 01:18:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:18:09,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-22 01:18:09,209 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2022-11-22 01:18:09,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:09,210 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-22 01:18:09,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:18:09,210 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-22 01:18:09,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:18:09,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:09,211 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-22 01:18:09,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:18:09,211 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:18:09,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:09,212 INFO L85 PathProgramCache]: Analyzing trace with hash -302775364, now seen corresponding path program 1 times [2022-11-22 01:18:09,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:09,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992639020] [2022-11-22 01:18:09,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:09,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:10,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:10,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:10,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992639020] [2022-11-22 01:18:10,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992639020] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:18:10,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822205067] [2022-11-22 01:18:10,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:10,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:18:10,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:18:10,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:18:10,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:18:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:11,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-22 01:18:11,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:18:11,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:11,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:11,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:11,324 INFO L321 Elim1Store]: treesize reduction 182, result has 34.8 percent of original size [2022-11-22 01:18:11,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 176 [2022-11-22 01:18:11,362 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 0 case distinctions, treesize of input 12 treesize of output 15 [2022-11-22 01:18:11,407 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 0 case distinctions, treesize of input 14 treesize of output 17 [2022-11-22 01:18:11,439 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:18:11,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 148 treesize of output 138 [2022-11-22 01:18:11,690 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 [2022-11-22 01:18:11,724 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 [2022-11-22 01:18:11,870 INFO L321 Elim1Store]: treesize reduction 53, result has 13.1 percent of original size [2022-11-22 01:18:11,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 100 treesize of output 47 [2022-11-22 01:18:11,884 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 [2022-11-22 01:18:12,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:12,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:12,920 INFO L321 Elim1Store]: treesize reduction 151, result has 35.2 percent of original size [2022-11-22 01:18:12,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 16035 treesize of output 13946 [2022-11-22 01:18:14,287 INFO L321 Elim1Store]: treesize reduction 145, result has 35.0 percent of original size [2022-11-22 01:18:14,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 14787 treesize of output 13821 [2022-11-22 01:18:18,591 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 253 treesize of output 245 [2022-11-22 01:18:21,612 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 10 treesize of output 9 [2022-11-22 01:18:21,647 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 10 treesize of output 9 [2022-11-22 01:18:21,665 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 10 treesize of output 9 [2022-11-22 01:18:21,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:21,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 1 [2022-11-22 01:18:21,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 57 [2022-11-22 01:18:21,949 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 1 [2022-11-22 01:18:21,992 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 [2022-11-22 01:18:22,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-22 01:18:22,018 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 1 [2022-11-22 01:18:22,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-22 01:18:22,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:22,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-22 01:18:22,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 59 [2022-11-22 01:18:22,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 118 [2022-11-22 01:18:22,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:22,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:22,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:22,176 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2022-11-22 01:18:22,198 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 [2022-11-22 01:18:22,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 118 [2022-11-22 01:18:22,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:22,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:22,272 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:22,273 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2022-11-22 01:18:22,705 INFO L321 Elim1Store]: treesize reduction 71, result has 37.2 percent of original size [2022-11-22 01:18:22,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 86 treesize of output 87 [2022-11-22 01:18:23,182 INFO L321 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-11-22 01:18:23,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 80 treesize of output 97 [2022-11-22 01:18:23,706 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:18:23,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 130 treesize of output 170 [2022-11-22 01:18:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:24,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:18:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:24,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822205067] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:18:24,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1776277220] [2022-11-22 01:18:24,995 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-22 01:18:24,996 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:18:24,999 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:18:25,005 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:18:25,005 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:18:25,197 INFO L321 Elim1Store]: treesize reduction 244, result has 7.9 percent of original size [2022-11-22 01:18:25,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 89 treesize of output 89 [2022-11-22 01:18:25,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2022-11-22 01:18:25,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 36 [2022-11-22 01:18:25,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 62 [2022-11-22 01:18:25,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2022-11-22 01:18:25,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:25,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 73 [2022-11-22 01:18:26,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:26,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:26,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:26,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:26,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:26,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:26,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:26,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:26,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:26,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:26,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:26,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 79 [2022-11-22 01:18:26,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:26,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:26,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:26,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:26,801 INFO L321 Elim1Store]: treesize reduction 152, result has 16.0 percent of original size [2022-11-22 01:18:26,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 576 treesize of output 532 [2022-11-22 01:18:27,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:27,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:27,272 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:27,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:27,341 INFO L321 Elim1Store]: treesize reduction 152, result has 16.0 percent of original size [2022-11-22 01:18:27,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 590 treesize of output 534 [2022-11-22 01:18:27,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:27,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:27,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:27,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:27,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:28,100 INFO L321 Elim1Store]: treesize reduction 337, result has 9.7 percent of original size [2022-11-22 01:18:28,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 677 treesize of output 593 [2022-11-22 01:18:28,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:28,799 INFO L321 Elim1Store]: treesize reduction 75, result has 1.3 percent of original size [2022-11-22 01:18:28,799 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 3 new quantified variables, introduced 9 case distinctions, treesize of input 619 treesize of output 560 [2022-11-22 01:18:28,824 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 525 treesize of output 511 [2022-11-22 01:18:28,869 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:28,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 541 treesize of output 519 [2022-11-22 01:18:28,914 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 523 treesize of output 513 [2022-11-22 01:18:29,419 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 13 treesize of output 9 [2022-11-22 01:18:29,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:29,504 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:18:29,504 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 50 treesize of output 45 [2022-11-22 01:18:29,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:29,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:29,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:29,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:29,801 INFO L321 Elim1Store]: treesize reduction 170, result has 27.7 percent of original size [2022-11-22 01:18:29,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 166 treesize of output 159 [2022-11-22 01:18:31,004 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-22 01:18:31,005 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 3 case distinctions, treesize of input 243 treesize of output 202 [2022-11-22 01:18:31,038 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 [2022-11-22 01:18:31,049 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 181 treesize of output 157 [2022-11-22 01:18:31,266 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 13 treesize of output 9 [2022-11-22 01:18:31,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:18:31,359 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:18:31,360 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 50 treesize of output 45 [2022-11-22 01:18:31,544 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:18:33,181 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '256#(and (<= 0 (+ |ULTIMATE.start_test_fun_#in~tmp#1| 2147483648)) (<= |ULTIMATE.start_main_#t~nondet20#1| 2147483647) (<= |ULTIMATE.start_test_fun_~tmp_ref~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~j#1| 2147483648)) (<= |ULTIMATE.start_test_fun_#in~i#1| 2147483647) (<= |ULTIMATE.start_test_fun_~i#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc6#1.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~k#1|)) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~k_ref~0#1.offset|) (<= |ULTIMATE.start_main_#t~nondet17#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet17#1|)) (<= 0 (+ |ULTIMATE.start_test_fun_~tmp#1| 2147483648)) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~i#1|)) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.base|) (= |ULTIMATE.start_test_fun_#t~malloc5#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~j#1|)) (< (+ 2147483649 |ULTIMATE.start_test_fun_#t~mem14#1|) 0) (<= 0 |ULTIMATE.start_test_fun_~tmp_ref~0#1.offset|) (<= |ULTIMATE.start_main_#t~nondet19#1| 2147483647) (<= 0 |ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) (<= |ULTIMATE.start_test_fun_~i_ref~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~i#1| 2147483648)) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.base|) (<= |ULTIMATE.start_test_fun_~tmp#1| 2147483647) (<= |ULTIMATE.start_test_fun_~j_ref~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~i_ref~0#1.offset|) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.base|) (<= |ULTIMATE.start_main_#t~nondet18#1| 2147483647) (<= 0 |ULTIMATE.start_test_fun_#t~malloc6#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet20#1|)) (= |ULTIMATE.start_test_fun_#t~malloc4#1.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet19#1|)) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet18#1|)) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (<= |ULTIMATE.start_test_fun_~k_ref~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.offset|) (<= |ULTIMATE.start_test_fun_~j#1| 2147483647) (<= 0 (+ |ULTIMATE.start_test_fun_~k#1| 2147483648)) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~k_ref~0#1.base|) (<= |ULTIMATE.start_test_fun_#in~j#1| 2147483647) (<= 0 |ULTIMATE.start_test_fun_#t~malloc5#1.base|) (<= |ULTIMATE.start_test_fun_#in~k#1| 2147483647) (<= |ULTIMATE.start_test_fun_~k#1| 2147483647) (<= |ULTIMATE.start_test_fun_#in~tmp#1| 2147483647) (<= 0 |ULTIMATE.start_test_fun_~j_ref~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:18:33,181 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:18:33,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:18:33,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 15 [2022-11-22 01:18:33,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912910795] [2022-11-22 01:18:33,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:18:33,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 01:18:33,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:33,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 01:18:33,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=420, Unknown=5, NotChecked=0, Total=506 [2022-11-22 01:18:33,184 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 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) [2022-11-22 01:18:33,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:33,984 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-11-22 01:18:33,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:18:33,984 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 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 11 [2022-11-22 01:18:33,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:33,985 INFO L225 Difference]: With dead ends: 25 [2022-11-22 01:18:33,985 INFO L226 Difference]: Without dead ends: 24 [2022-11-22 01:18:33,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=147, Invalid=601, Unknown=8, NotChecked=0, Total=756 [2022-11-22 01:18:33,986 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:33,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 5 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:18:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-22 01:18:33,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-22 01:18:33,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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) [2022-11-22 01:18:33,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2022-11-22 01:18:33,993 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 11 [2022-11-22 01:18:33,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:33,993 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2022-11-22 01:18:33,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 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) [2022-11-22 01:18:33,994 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2022-11-22 01:18:33,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-22 01:18:33,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:33,994 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1] [2022-11-22 01:18:34,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:18:34,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:18:34,201 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:18:34,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:34,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1363867952, now seen corresponding path program 2 times [2022-11-22 01:18:34,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:34,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520197382] [2022-11-22 01:18:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:34,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:18:36,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:36,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520197382] [2022-11-22 01:18:36,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520197382] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:18:36,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949527358] [2022-11-22 01:18:36,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:18:36,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:18:36,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:18:36,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:18:36,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478af16d-228d-4408-a22e-fab108dfd334/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:18:36,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:18:36,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:18:36,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-22 01:18:36,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:18:36,649 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:18:36,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 44 treesize of output 40 [2022-11-22 01:18:36,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:18:36,919 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:18:36,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2022-11-22 01:18:37,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:37,055 INFO L321 Elim1Store]: treesize reduction 47, result has 42.0 percent of original size [2022-11-22 01:18:37,055 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 4 case distinctions, treesize of input 61 treesize of output 61 [2022-11-22 01:18:37,297 INFO L321 Elim1Store]: treesize reduction 36, result has 35.7 percent of original size [2022-11-22 01:18:37,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 72 [2022-11-22 01:18:37,636 INFO L321 Elim1Store]: treesize reduction 44, result has 56.9 percent of original size [2022-11-22 01:18:37,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 61 treesize of output 98 [2022-11-22 01:18:38,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:38,167 INFO L321 Elim1Store]: treesize reduction 42, result has 45.5 percent of original size [2022-11-22 01:18:38,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 136 [2022-11-22 01:18:38,180 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 0 case distinctions, treesize of input 36 treesize of output 39 [2022-11-22 01:18:38,215 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:18:38,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 99 treesize of output 117 [2022-11-22 01:18:38,227 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 54 treesize of output 48 [2022-11-22 01:18:38,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:18:38,417 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 13 treesize of output 9 [2022-11-22 01:18:38,435 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 13 treesize of output 9 [2022-11-22 01:18:38,466 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 13 treesize of output 9 [2022-11-22 01:18:38,491 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 13 treesize of output 9 [2022-11-22 01:18:38,521 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 60 treesize of output 54 [2022-11-22 01:18:38,573 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 64 treesize of output 58 [2022-11-22 01:18:38,858 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 31 [2022-11-22 01:18:38,926 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:18:38,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:18:39,089 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_874 Int) (v_ArrVal_878 (Array Int Int)) (v_ArrVal_879 Int) (v_ArrVal_880 (Array Int Int)) (v_ArrVal_875 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~k_ref~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~k_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~k_ref~0#1.offset| v_ArrVal_874)))) (or (< 0 (+ (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| (store (select .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset| v_ArrVal_879)) |c_ULTIMATE.start_test_fun_~i_ref~0#1.base| (store (select (store .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| v_ArrVal_878) |c_ULTIMATE.start_test_fun_~i_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~i_ref~0#1.offset| v_ArrVal_875)) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset|) 2147483650)) (< v_ArrVal_879 (select (select .cse0 |c_ULTIMATE.start_test_fun_~i_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~i_ref~0#1.offset|)) (< v_ArrVal_875 (select (select (store .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| v_ArrVal_880) |c_ULTIMATE.start_test_fun_~j_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~j_ref~0#1.offset|)) (<= (+ v_ArrVal_874 2147483648) 0)))) is different from false [2022-11-22 01:18:39,151 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_874 Int) (v_ArrVal_872 Int) (v_ArrVal_878 (Array Int Int)) (v_ArrVal_879 Int) (v_ArrVal_880 (Array Int Int)) (v_ArrVal_875 Int)) (let ((.cse0 (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~j_ref~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~j_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~j_ref~0#1.offset| v_ArrVal_872)))) (store .cse1 |c_ULTIMATE.start_test_fun_~k_ref~0#1.base| (store (select .cse1 |c_ULTIMATE.start_test_fun_~k_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~k_ref~0#1.offset| v_ArrVal_874))))) (or (< v_ArrVal_875 (select (select (store .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| v_ArrVal_880) |c_ULTIMATE.start_test_fun_~j_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~j_ref~0#1.offset|)) (< v_ArrVal_879 (select (select .cse0 |c_ULTIMATE.start_test_fun_~i_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~i_ref~0#1.offset|)) (< 0 (+ 2147483650 (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| (store (select .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset| v_ArrVal_879)) |c_ULTIMATE.start_test_fun_~i_ref~0#1.base| (store (select (store .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| v_ArrVal_878) |c_ULTIMATE.start_test_fun_~i_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~i_ref~0#1.offset| v_ArrVal_875)) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset|))) (< (+ v_ArrVal_872 2147483648) 0) (<= (+ v_ArrVal_874 2147483648) 0)))) is different from false [2022-11-22 01:18:40,406 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_863 Int) (v_ArrVal_874 Int) (v_ArrVal_862 Int) (v_ArrVal_872 Int) (v_ArrVal_878 (Array Int Int)) (|ULTIMATE.start_test_fun_~k_ref~0#1.base| Int) (v_ArrVal_879 Int) (v_ArrVal_880 (Array Int Int)) (v_ArrVal_875 Int)) (let ((.cse1 (let ((.cse4 (store |c_#memory_int| |ULTIMATE.start_test_fun_~k_ref~0#1.base| (store (select |c_#memory_int| |ULTIMATE.start_test_fun_~k_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~k_ref~0#1.offset| v_ArrVal_862)))) (store .cse4 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| (store (select .cse4 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset| (select (select .cse4 |c_ULTIMATE.start_test_fun_~i_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~i_ref~0#1.offset|)))))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (store .cse1 |c_ULTIMATE.start_test_fun_~i_ref~0#1.base| (store (select .cse1 |c_ULTIMATE.start_test_fun_~i_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~i_ref~0#1.offset| v_ArrVal_863)))) (store .cse3 |c_ULTIMATE.start_test_fun_~j_ref~0#1.base| (store (select .cse3 |c_ULTIMATE.start_test_fun_~j_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~j_ref~0#1.offset| v_ArrVal_872))))) (store .cse2 |ULTIMATE.start_test_fun_~k_ref~0#1.base| (store (select .cse2 |ULTIMATE.start_test_fun_~k_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~k_ref~0#1.offset| v_ArrVal_874))))) (or (< v_ArrVal_875 (select (select (store .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| v_ArrVal_880) |c_ULTIMATE.start_test_fun_~j_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~j_ref~0#1.offset|)) (< (+ v_ArrVal_872 2147483648) 0) (< v_ArrVal_879 (select (select .cse0 |c_ULTIMATE.start_test_fun_~i_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~i_ref~0#1.offset|)) (< (+ v_ArrVal_862 2147483648) 0) (not (<= (select (select .cse1 |c_ULTIMATE.start_test_fun_~j_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~j_ref~0#1.offset|) v_ArrVal_863)) (<= (+ v_ArrVal_874 2147483648) 0) (< 0 (+ (select (select (store (store .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| (store (select .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset| v_ArrVal_879)) |c_ULTIMATE.start_test_fun_~i_ref~0#1.base| (store (select (store .cse0 |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base| v_ArrVal_878) |c_ULTIMATE.start_test_fun_~i_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~i_ref~0#1.offset| v_ArrVal_875)) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~tmp_ref~0#1.offset|) 2147483650)))))) is different from false [2022-11-22 01:18:43,640 INFO L321 Elim1Store]: treesize reduction 756, result has 41.4 percent of original size [2022-11-22 01:18:43,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 30 case distinctions, treesize of input 17706 treesize of output 2811 [2022-11-22 01:18:44,529 INFO L217 Elim1Store]: Index analysis took 403 ms