./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98addbea2d7583a98dfe535f8a62b1da98b67168a60a4eb76b7c658a539d3a89 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:23:18,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:23:18,455 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:23:18,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:23:18,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:23:18,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:23:18,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:23:18,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:23:18,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:23:18,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:23:18,486 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:23:18,487 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:23:18,487 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:23:18,488 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:23:18,488 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:23:18,489 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:23:18,490 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:23:18,490 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:23:18,490 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:23:18,491 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:23:18,491 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:23:18,492 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:23:18,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:23:18,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:23:18,494 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:23:18,494 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:23:18,494 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:23:18,495 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:23:18,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:23:18,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:23:18,496 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:23:18,496 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:23:18,497 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:23:18,497 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:23:18,497 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:23:18,497 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:23:18,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:23:18,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:23:18,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:23:18,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:23:18,498 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:23:18,499 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:23:18,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:23:18,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:23:18,499 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:23:18,499 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:23:18,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:23:18,500 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98addbea2d7583a98dfe535f8a62b1da98b67168a60a4eb76b7c658a539d3a89 [2023-12-02 15:23:18,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:23:18,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:23:18,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:23:18,739 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:23:18,740 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:23:18,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i [2023-12-02 15:23:21,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:23:21,977 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:23:21,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i [2023-12-02 15:23:21,999 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/data/207ba4b63/c7b377bc5e7f4a4680133691a7a35990/FLAGb7615ad07 [2023-12-02 15:23:22,016 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/data/207ba4b63/c7b377bc5e7f4a4680133691a7a35990 [2023-12-02 15:23:22,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:23:22,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:23:22,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:23:22,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:23:22,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:23:22,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be7a3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22, skipping insertion in model container [2023-12-02 15:23:22,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,112 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:23:22,499 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i[33021,33034] [2023-12-02 15:23:22,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:23:22,597 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:23:22,628 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i[33021,33034] [2023-12-02 15:23:22,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:23:22,715 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:23:22,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22 WrapperNode [2023-12-02 15:23:22,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:23:22,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:23:22,717 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:23:22,717 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:23:22,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,748 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,804 INFO L138 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 955 [2023-12-02 15:23:22,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:23:22,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:23:22,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:23:22,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:23:22,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:23:22,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:23:22,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:23:22,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:23:22,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (1/1) ... [2023-12-02 15:23:22,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:23:22,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:23:22,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:23:22,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:23:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:23:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 15:23:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 15:23:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:23:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 15:23:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 15:23:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 15:23:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:23:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:23:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 15:23:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 15:23:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:23:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:23:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:23:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:23:23,187 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:23:23,189 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:23:24,228 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:23:25,171 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:23:25,172 INFO L309 CfgBuilder]: Removed 40 assume(true) statements. [2023-12-02 15:23:25,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:25 BoogieIcfgContainer [2023-12-02 15:23:25,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:23:25,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:23:25,176 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:23:25,179 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:23:25,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:23:22" (1/3) ... [2023-12-02 15:23:25,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c9051a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:25, skipping insertion in model container [2023-12-02 15:23:25,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:22" (2/3) ... [2023-12-02 15:23:25,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c9051a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:25, skipping insertion in model container [2023-12-02 15:23:25,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:25" (3/3) ... [2023-12-02 15:23:25,182 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-2.i [2023-12-02 15:23:25,201 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:23:25,201 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:23:25,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:23:25,257 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=LoopHeads, 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;@d870a93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:23:25,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:23:25,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 83 states have (on average 1.7349397590361446) internal successors, (144), 94 states have internal predecessors, (144), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 15:23:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 15:23:25,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:23:25,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:23:25,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:23:25,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:23:25,277 INFO L85 PathProgramCache]: Analyzing trace with hash -692235053, now seen corresponding path program 1 times [2023-12-02 15:23:25,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:23:25,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432053329] [2023-12-02 15:23:25,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:23:25,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:23:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:23:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:23:25,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:23:25,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432053329] [2023-12-02 15:23:25,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432053329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:23:25,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:23:25,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:23:25,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411407670] [2023-12-02 15:23:25,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:23:25,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:23:25,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:23:25,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:23:25,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:23:25,518 INFO L87 Difference]: Start difference. First operand has 100 states, 83 states have (on average 1.7349397590361446) internal successors, (144), 94 states have internal predecessors, (144), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:27,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:29,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:31,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:33,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:35,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:37,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:38,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:23:38,953 INFO L93 Difference]: Finished difference Result 251 states and 440 transitions. [2023-12-02 15:23:38,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:23:38,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 15:23:38,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:23:38,970 INFO L225 Difference]: With dead ends: 251 [2023-12-02 15:23:38,970 INFO L226 Difference]: Without dead ends: 136 [2023-12-02 15:23:38,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:23:38,976 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 53 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:23:38,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 214 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 6 Unknown, 0 Unchecked, 13.4s Time] [2023-12-02 15:23:38,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-12-02 15:23:39,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 85. [2023-12-02 15:23:39,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 79 states have internal predecessors, (87), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 15:23:39,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 113 transitions. [2023-12-02 15:23:39,023 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 113 transitions. Word has length 8 [2023-12-02 15:23:39,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:23:39,024 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 113 transitions. [2023-12-02 15:23:39,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:39,025 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 113 transitions. [2023-12-02 15:23:39,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 15:23:39,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:23:39,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:23:39,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:23:39,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:23:39,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:23:39,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2032290299, now seen corresponding path program 1 times [2023-12-02 15:23:39,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:23:39,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123873239] [2023-12-02 15:23:39,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:23:39,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:23:39,113 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:23:39,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599680321] [2023-12-02 15:23:39,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:23:39,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:23:39,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:23:39,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:23:39,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:23:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:23:39,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:23:39,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:23:39,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:23:39,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:23:39,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:23:39,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:23:39,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123873239] [2023-12-02 15:23:39,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:23:39,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599680321] [2023-12-02 15:23:39,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599680321] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:23:39,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1980618266] [2023-12-02 15:23:39,642 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2023-12-02 15:23:39,643 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:23:39,645 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:23:39,649 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:23:39,650 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:23:45,575 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:23:46,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1980618266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:23:46,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:23:46,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [3, 3] total 12 [2023-12-02 15:23:46,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436038375] [2023-12-02 15:23:46,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:23:46,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 15:23:46,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:23:46,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 15:23:46,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2023-12-02 15:23:46,266 INFO L87 Difference]: Start difference. First operand 85 states and 113 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:23:48,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:23:50,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:23:52,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:23:54,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:23:57,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:24:00,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:02,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:24:04,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:06,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:24:08,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:10,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:24:12,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:24:14,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:16,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:18,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:24:20,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:22,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:24:24,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:26,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:24:28,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:24:30,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:32,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:24:32,424 INFO L93 Difference]: Finished difference Result 188 states and 248 transitions. [2023-12-02 15:24:32,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 15:24:32,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-12-02 15:24:32,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:24:32,432 INFO L225 Difference]: With dead ends: 188 [2023-12-02 15:24:32,432 INFO L226 Difference]: Without dead ends: 105 [2023-12-02 15:24:32,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=103, Invalid=135, Unknown=2, NotChecked=0, Total=240 [2023-12-02 15:24:32,434 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 13 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 5 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.8s IncrementalHoareTripleChecker+Time [2023-12-02 15:24:32,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 327 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 154 Invalid, 24 Unknown, 0 Unchecked, 45.8s Time] [2023-12-02 15:24:32,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-02 15:24:32,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 96. [2023-12-02 15:24:32,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 80 states have (on average 1.225) internal successors, (98), 90 states have internal predecessors, (98), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 15:24:32,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2023-12-02 15:24:32,446 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 35 [2023-12-02 15:24:32,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:24:32,447 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2023-12-02 15:24:32,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:24:32,447 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2023-12-02 15:24:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 15:24:32,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:24:32,448 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:24:32,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:24:32,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-02 15:24:32,649 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:24:32,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:24:32,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1153930200, now seen corresponding path program 1 times [2023-12-02 15:24:32,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:24:32,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101864754] [2023-12-02 15:24:32,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:24:32,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:24:32,711 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:24:32,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945215133] [2023-12-02 15:24:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:24:32,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:24:32,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:24:32,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:24:32,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 15:24:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:24:33,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:24:33,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:24:33,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:24:33,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:24:33,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:24:33,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:24:33,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101864754] [2023-12-02 15:24:33,167 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:24:33,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945215133] [2023-12-02 15:24:33,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945215133] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:24:33,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1459648634] [2023-12-02 15:24:33,172 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2023-12-02 15:24:33,172 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:24:33,172 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:24:33,173 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:24:33,173 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:24:38,589 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 206 for LOIs [2023-12-02 15:24:38,727 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:24:58,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1459648634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:24:58,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:24:58,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4] total 18 [2023-12-02 15:24:58,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897338625] [2023-12-02 15:24:58,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:24:58,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 15:24:58,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:24:58,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 15:24:58,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=205, Unknown=6, NotChecked=0, Total=306 [2023-12-02 15:24:58,830 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 15:25:01,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:03,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:05,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:07,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:09,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:11,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:13,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:15,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:17,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:19,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:22,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:28,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:43,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:25:45,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:00,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:05,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:12,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:14,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:16,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:18,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:20,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:22,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:24,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:26,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:28,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:30,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:32,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:34,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:36,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:38,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:40,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:42,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:44,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:46,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:48,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:50,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:52,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:54,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:56,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:26:58,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:00,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:02,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:27:05,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 15:27:07,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 15:27:09,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 15:27:10,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:27:10,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:27:10,983 INFO L93 Difference]: Finished difference Result 190 states and 250 transitions. [2023-12-02 15:27:10,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 15:27:10,993 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2023-12-02 15:27:10,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:27:10,994 INFO L225 Difference]: With dead ends: 190 [2023-12-02 15:27:10,994 INFO L226 Difference]: Without dead ends: 107 [2023-12-02 15:27:10,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 47.7s TimeCoverageRelationStatistics Valid=143, Invalid=345, Unknown=18, NotChecked=0, Total=506 [2023-12-02 15:27:10,996 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 10 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 4 mSolverCounterUnsat, 47 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 47 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:27:10,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 606 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 339 Invalid, 47 Unknown, 0 Unchecked, 104.5s Time] [2023-12-02 15:27:10,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-02 15:27:11,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 101. [2023-12-02 15:27:11,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.2142857142857142) internal successors, (102), 94 states have internal predecessors, (102), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 15:27:11,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 130 transitions. [2023-12-02 15:27:11,014 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 130 transitions. Word has length 48 [2023-12-02 15:27:11,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:27:11,014 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 130 transitions. [2023-12-02 15:27:11,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 15:27:11,014 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 130 transitions. [2023-12-02 15:27:11,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 15:27:11,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:27:11,016 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:27:11,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 15:27:11,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:27:11,219 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:27:11,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:27:11,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2029962856, now seen corresponding path program 1 times [2023-12-02 15:27:11,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:27:11,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084085729] [2023-12-02 15:27:11,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:27:11,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:27:11,311 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:27:11,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1656163697] [2023-12-02 15:27:11,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:27:11,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:27:11,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:27:11,313 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:27:11,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 15:27:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:27:11,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:27:11,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:27:11,691 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 15:27:11,691 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:27:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 15:27:11,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:27:11,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084085729] [2023-12-02 15:27:11,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:27:11,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656163697] [2023-12-02 15:27:11,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656163697] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:27:11,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1929455192] [2023-12-02 15:27:11,784 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2023-12-02 15:27:11,784 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:27:11,785 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:27:11,785 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:27:11,785 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:27:42,266 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 28 for LOIs [2023-12-02 15:27:42,277 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 206 for LOIs [2023-12-02 15:27:42,596 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:27:58,626 WARN L293 SmtUtils]: Spent 11.55s on a formula simplification. DAG size of input: 206 DAG size of output: 203 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:29:21,008 WARN L293 SmtUtils]: Spent 30.54s on a formula simplification that was a NOOP. DAG size: 244 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:30:16,463 WARN L293 SmtUtils]: Spent 25.24s on a formula simplification that was a NOOP. DAG size: 220 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:30:18,483 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~count_int_int~0 0) (= |c_ULTIMATE.start_main_~user~0#1.offset| 0) (= |c_ULTIMATE.start_main_~users~0#1.offset| 0) (<= 1 |c_#StackHeapBarrier|) (or (and (exists ((|v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_13| Int)) (and (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_13| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_13|))) (exists ((|v_#memory_int_40| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_415| (Array Int (Array Int Int))) (|v_#memory_int_428| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_415| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_28| (Array Int (Array Int Int))) (|v_#valid_71| (Array Int Int)) (|v_#memory_$Pointer$.base_27| (Array Int (Array Int Int))) (|v_#memory_int_39| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_29| (Array Int (Array Int Int))) (|v_#length_40| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_17| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc58#1.base_4| Int) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_28| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_27| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_29| (Array Int (Array Int Int)))) (let ((.cse13 (select (select |v_#memory_$Pointer$.base_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse14 (+ 16 (select (select |v_#memory_$Pointer$.offset_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse16 (select (select |v_#memory_$Pointer$.base_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse17 (select (select |v_#memory_$Pointer$.offset_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (let ((.cse20 (store |v_#memory_$Pointer$.offset_27| .cse16 (store (select |v_#memory_$Pointer$.offset_27| .cse16) .cse17 0))) (.cse2 (store |v_#memory_$Pointer$.base_27| .cse16 (store (select |v_#memory_$Pointer$.base_27| .cse16) .cse17 |v_ULTIMATE.start_main_#t~malloc58#1.base_4|))) (.cse5 (store |v_#memory_$Pointer$.offset_415| .cse13 (store (select |v_#memory_$Pointer$.offset_415| .cse13) .cse14 8))) (.cse10 (store |v_#memory_$Pointer$.base_415| .cse13 (store (select |v_#memory_$Pointer$.base_415| .cse13) .cse14 |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse6 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse7 (+ (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4)) (.cse11 (select (select |v_#memory_$Pointer$.base_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse12 (+ (select (select |v_#memory_$Pointer$.offset_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse8 (select (select |v_#memory_$Pointer$.base_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse9 (+ (select (select |v_#memory_$Pointer$.offset_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse4 (+ 40 (select (select .cse20 |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (and (let ((.cse0 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse1 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (or (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| .cse0) .cse1) 0)) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| .cse0) .cse1) 0)))) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| (store .cse2 .cse3 (store (select .cse2 .cse3) .cse4 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| .cse3) .cse4)))) (= (store .cse5 .cse6 (store (select .cse5 .cse6) .cse7 (select (select |v_#memory_$Pointer$.offset_28| .cse6) .cse7))) |v_#memory_$Pointer$.offset_28|) (not (= |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 0)) (= (store |v_#length_40| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 384) |c_#length|) (= (store |v_#memory_$Pointer$.base_28| .cse8 (store (select |v_#memory_$Pointer$.base_28| .cse8) .cse9 (select (select |v_#memory_$Pointer$.base_29| .cse8) .cse9))) |v_#memory_$Pointer$.base_29|) (= (store .cse10 .cse6 (store (select .cse10 .cse6) .cse7 (select (select |v_#memory_$Pointer$.base_28| .cse6) .cse7))) |v_#memory_$Pointer$.base_28|) (= (store |v_#memory_$Pointer$.base_29| .cse11 (store (select |v_#memory_$Pointer$.base_29| .cse11) .cse12 (select (select |v_#memory_$Pointer$.base_27| .cse11) .cse12))) |v_#memory_$Pointer$.base_27|) (= |c_#valid| (store |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1)) (= |v_#memory_int_40| (store |v_#memory_int_428| .cse13 (store (select |v_#memory_int_428| .cse13) .cse14 (select (select |v_#memory_int_40| .cse13) .cse14)))) (= |v_#memory_int_39| (let ((.cse15 (let ((.cse18 (let ((.cse19 (store |v_#memory_int_40| .cse6 (store (select |v_#memory_int_40| .cse6) .cse7 32)))) (store .cse19 .cse8 (store (select .cse19 .cse8) .cse9 5))))) (store .cse18 .cse11 (store (select .cse18 .cse11) .cse12 8))))) (store .cse15 .cse16 (store (select .cse15 .cse16) .cse17 (select (select |v_#memory_int_39| .cse16) .cse17))))) (= (store |v_#memory_$Pointer$.offset_29| .cse11 (store (select |v_#memory_$Pointer$.offset_29| .cse11) .cse12 (select (select |v_#memory_$Pointer$.offset_27| .cse11) .cse12))) |v_#memory_$Pointer$.offset_27|) (= (store |v_#memory_$Pointer$.offset_28| .cse8 (store (select |v_#memory_$Pointer$.offset_28| .cse8) .cse9 (select (select |v_#memory_$Pointer$.offset_29| .cse8) .cse9))) |v_#memory_$Pointer$.offset_29|) (= |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| (store .cse20 .cse3 (store (select .cse20 .cse3) .cse4 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| .cse3) .cse4)))) (<= (+ |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1) |c_#StackHeapBarrier|) (= (select |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4|) 0))))))) (and (exists ((|v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_14| Int)) (and (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_14| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_14|))) (exists ((|v_#memory_int_40| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_415| (Array Int (Array Int Int))) (|v_#memory_int_428| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_415| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_28| (Array Int (Array Int Int))) (|v_#valid_71| (Array Int Int)) (|v_#memory_$Pointer$.base_27| (Array Int (Array Int Int))) (|v_#memory_int_39| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_29| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_18| (Array Int (Array Int Int))) (|v_#length_40| (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc58#1.base_4| Int) (|v_#memory_$Pointer$.offset_28| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_27| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_29| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| (Array Int (Array Int Int)))) (let ((.cse32 (select (select |v_#memory_$Pointer$.base_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse33 (+ 16 (select (select |v_#memory_$Pointer$.offset_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse35 (select (select |v_#memory_$Pointer$.base_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse36 (select (select |v_#memory_$Pointer$.offset_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (let ((.cse21 (store |v_#memory_$Pointer$.offset_27| .cse35 (store (select |v_#memory_$Pointer$.offset_27| .cse35) .cse36 0))) (.cse41 (store |v_#memory_$Pointer$.base_27| .cse35 (store (select |v_#memory_$Pointer$.base_27| .cse35) .cse36 |v_ULTIMATE.start_main_#t~malloc58#1.base_4|))) (.cse24 (store |v_#memory_$Pointer$.offset_415| .cse32 (store (select |v_#memory_$Pointer$.offset_415| .cse32) .cse33 8))) (.cse29 (store |v_#memory_$Pointer$.base_415| .cse32 (store (select |v_#memory_$Pointer$.base_415| .cse32) .cse33 |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse25 (select (select .cse29 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse26 (+ (select (select .cse24 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4)) (.cse30 (select (select |v_#memory_$Pointer$.base_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse31 (+ (select (select |v_#memory_$Pointer$.offset_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse27 (select (select |v_#memory_$Pointer$.base_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse28 (+ (select (select |v_#memory_$Pointer$.offset_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse22 (select (select .cse41 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse23 (+ 40 (select (select .cse21 |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (and (= |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| (store .cse21 .cse22 (store (select .cse21 .cse22) .cse23 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| .cse22) .cse23)))) (= (store .cse24 .cse25 (store (select .cse24 .cse25) .cse26 (select (select |v_#memory_$Pointer$.offset_28| .cse25) .cse26))) |v_#memory_$Pointer$.offset_28|) (not (= |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 0)) (= (store |v_#length_40| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 384) |c_#length|) (= (store |v_#memory_$Pointer$.base_28| .cse27 (store (select |v_#memory_$Pointer$.base_28| .cse27) .cse28 (select (select |v_#memory_$Pointer$.base_29| .cse27) .cse28))) |v_#memory_$Pointer$.base_29|) (= (store .cse29 .cse25 (store (select .cse29 .cse25) .cse26 (select (select |v_#memory_$Pointer$.base_28| .cse25) .cse26))) |v_#memory_$Pointer$.base_28|) (= (store |v_#memory_$Pointer$.base_29| .cse30 (store (select |v_#memory_$Pointer$.base_29| .cse30) .cse31 (select (select |v_#memory_$Pointer$.base_27| .cse30) .cse31))) |v_#memory_$Pointer$.base_27|) (= |c_#valid| (store |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1)) (= |v_#memory_int_40| (store |v_#memory_int_428| .cse32 (store (select |v_#memory_int_428| .cse32) .cse33 (select (select |v_#memory_int_40| .cse32) .cse33)))) (= |v_#memory_int_39| (let ((.cse34 (let ((.cse37 (let ((.cse38 (store |v_#memory_int_40| .cse25 (store (select |v_#memory_int_40| .cse25) .cse26 32)))) (store .cse38 .cse27 (store (select .cse38 .cse27) .cse28 5))))) (store .cse37 .cse30 (store (select .cse37 .cse30) .cse31 8))))) (store .cse34 .cse35 (store (select .cse34 .cse35) .cse36 (select (select |v_#memory_int_39| .cse35) .cse36))))) (let ((.cse39 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse40 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (or (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| .cse39) .cse40) 0)) (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| .cse39) .cse40) 0)))) (= (store |v_#memory_$Pointer$.offset_29| .cse30 (store (select |v_#memory_$Pointer$.offset_29| .cse30) .cse31 (select (select |v_#memory_$Pointer$.offset_27| .cse30) .cse31))) |v_#memory_$Pointer$.offset_27|) (= (store |v_#memory_$Pointer$.offset_28| .cse27 (store (select |v_#memory_$Pointer$.offset_28| .cse27) .cse28 (select (select |v_#memory_$Pointer$.offset_29| .cse27) .cse28))) |v_#memory_$Pointer$.offset_29|) (<= (+ |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1) |c_#StackHeapBarrier|) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| (store .cse41 .cse22 (store (select .cse41 .cse22) .cse23 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| .cse22) .cse23)))) (= (select |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4|) 0)))))))) (<= 0 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~users~0#1.base| |c_ULTIMATE.start_main_~user~0#1.base|)) is different from false [2023-12-02 15:30:20,510 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~count_int_int~0 0) (= |c_ULTIMATE.start_main_~user~0#1.offset| 0) (= |c_ULTIMATE.start_main_~users~0#1.offset| 0) (<= 1 |c_#StackHeapBarrier|) (exists ((|v_#memory_int_429| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_416| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_416| (Array Int (Array Int Int)))) (let ((.cse1 (+ 12 (select (select |v_#memory_$Pointer$.offset_416| |c_ULTIMATE.start_main_~users~0#1.base|) 8))) (.cse0 (select (select |v_#memory_$Pointer$.base_416| |c_ULTIMATE.start_main_~users~0#1.base|) 8))) (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_416| .cse0 (store (select |v_#memory_$Pointer$.offset_416| .cse0) .cse1 (select (select |c_#memory_$Pointer$.offset| .cse0) .cse1)))) (= |c_#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_416| .cse0 (store (select |v_#memory_$Pointer$.base_416| .cse0) .cse1 (select (select |c_#memory_$Pointer$.base| .cse0) .cse1)))) (= (store |v_#memory_int_429| .cse0 (let ((.cse2 (select |v_#memory_int_429| .cse0))) (store .cse2 .cse1 (+ (select .cse2 .cse1) 1)))) |c_#memory_int|)))) (or (and (exists ((|v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_13| Int)) (and (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_13| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_13|))) (exists ((|v_#memory_int_40| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_415| (Array Int (Array Int Int))) (|v_#memory_int_428| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_415| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_28| (Array Int (Array Int Int))) (|v_#valid_71| (Array Int Int)) (|v_#memory_$Pointer$.base_27| (Array Int (Array Int Int))) (|v_#memory_int_39| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_29| (Array Int (Array Int Int))) (|v_#length_40| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_17| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc58#1.base_4| Int) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_28| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_27| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_29| (Array Int (Array Int Int)))) (let ((.cse16 (select (select |v_#memory_$Pointer$.base_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse17 (+ 16 (select (select |v_#memory_$Pointer$.offset_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse19 (select (select |v_#memory_$Pointer$.base_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse20 (select (select |v_#memory_$Pointer$.offset_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (let ((.cse23 (store |v_#memory_$Pointer$.offset_27| .cse19 (store (select |v_#memory_$Pointer$.offset_27| .cse19) .cse20 0))) (.cse5 (store |v_#memory_$Pointer$.base_27| .cse19 (store (select |v_#memory_$Pointer$.base_27| .cse19) .cse20 |v_ULTIMATE.start_main_#t~malloc58#1.base_4|))) (.cse8 (store |v_#memory_$Pointer$.offset_415| .cse16 (store (select |v_#memory_$Pointer$.offset_415| .cse16) .cse17 8))) (.cse13 (store |v_#memory_$Pointer$.base_415| .cse16 (store (select |v_#memory_$Pointer$.base_415| .cse16) .cse17 |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse9 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse10 (+ (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4)) (.cse14 (select (select |v_#memory_$Pointer$.base_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse15 (+ (select (select |v_#memory_$Pointer$.offset_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse11 (select (select |v_#memory_$Pointer$.base_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse12 (+ (select (select |v_#memory_$Pointer$.offset_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse7 (+ 40 (select (select .cse23 |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (and (let ((.cse3 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse4 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (or (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| .cse3) .cse4) 0)) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| .cse3) .cse4) 0)))) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| (store .cse5 .cse6 (store (select .cse5 .cse6) .cse7 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| .cse6) .cse7)))) (= (store .cse8 .cse9 (store (select .cse8 .cse9) .cse10 (select (select |v_#memory_$Pointer$.offset_28| .cse9) .cse10))) |v_#memory_$Pointer$.offset_28|) (not (= |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 0)) (= (store |v_#length_40| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 384) |c_#length|) (= (store |v_#memory_$Pointer$.base_28| .cse11 (store (select |v_#memory_$Pointer$.base_28| .cse11) .cse12 (select (select |v_#memory_$Pointer$.base_29| .cse11) .cse12))) |v_#memory_$Pointer$.base_29|) (= (store .cse13 .cse9 (store (select .cse13 .cse9) .cse10 (select (select |v_#memory_$Pointer$.base_28| .cse9) .cse10))) |v_#memory_$Pointer$.base_28|) (= (store |v_#memory_$Pointer$.base_29| .cse14 (store (select |v_#memory_$Pointer$.base_29| .cse14) .cse15 (select (select |v_#memory_$Pointer$.base_27| .cse14) .cse15))) |v_#memory_$Pointer$.base_27|) (= |c_#valid| (store |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1)) (= |v_#memory_int_40| (store |v_#memory_int_428| .cse16 (store (select |v_#memory_int_428| .cse16) .cse17 (select (select |v_#memory_int_40| .cse16) .cse17)))) (= |v_#memory_int_39| (let ((.cse18 (let ((.cse21 (let ((.cse22 (store |v_#memory_int_40| .cse9 (store (select |v_#memory_int_40| .cse9) .cse10 32)))) (store .cse22 .cse11 (store (select .cse22 .cse11) .cse12 5))))) (store .cse21 .cse14 (store (select .cse21 .cse14) .cse15 8))))) (store .cse18 .cse19 (store (select .cse18 .cse19) .cse20 (select (select |v_#memory_int_39| .cse19) .cse20))))) (= (store |v_#memory_$Pointer$.offset_29| .cse14 (store (select |v_#memory_$Pointer$.offset_29| .cse14) .cse15 (select (select |v_#memory_$Pointer$.offset_27| .cse14) .cse15))) |v_#memory_$Pointer$.offset_27|) (= (store |v_#memory_$Pointer$.offset_28| .cse11 (store (select |v_#memory_$Pointer$.offset_28| .cse11) .cse12 (select (select |v_#memory_$Pointer$.offset_29| .cse11) .cse12))) |v_#memory_$Pointer$.offset_29|) (= |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| (store .cse23 .cse6 (store (select .cse23 .cse6) .cse7 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| .cse6) .cse7)))) (<= (+ |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1) |c_#StackHeapBarrier|) (= (select |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4|) 0))))))) (and (exists ((|v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_14| Int)) (and (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_14| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_14|))) (exists ((|v_#memory_int_40| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_415| (Array Int (Array Int Int))) (|v_#memory_int_428| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_415| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_28| (Array Int (Array Int Int))) (|v_#valid_71| (Array Int Int)) (|v_#memory_$Pointer$.base_27| (Array Int (Array Int Int))) (|v_#memory_int_39| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_29| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_18| (Array Int (Array Int Int))) (|v_#length_40| (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc58#1.base_4| Int) (|v_#memory_$Pointer$.offset_28| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_27| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_29| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| (Array Int (Array Int Int)))) (let ((.cse35 (select (select |v_#memory_$Pointer$.base_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse36 (+ 16 (select (select |v_#memory_$Pointer$.offset_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse38 (select (select |v_#memory_$Pointer$.base_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse39 (select (select |v_#memory_$Pointer$.offset_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (let ((.cse24 (store |v_#memory_$Pointer$.offset_27| .cse38 (store (select |v_#memory_$Pointer$.offset_27| .cse38) .cse39 0))) (.cse44 (store |v_#memory_$Pointer$.base_27| .cse38 (store (select |v_#memory_$Pointer$.base_27| .cse38) .cse39 |v_ULTIMATE.start_main_#t~malloc58#1.base_4|))) (.cse27 (store |v_#memory_$Pointer$.offset_415| .cse35 (store (select |v_#memory_$Pointer$.offset_415| .cse35) .cse36 8))) (.cse32 (store |v_#memory_$Pointer$.base_415| .cse35 (store (select |v_#memory_$Pointer$.base_415| .cse35) .cse36 |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse28 (select (select .cse32 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse29 (+ (select (select .cse27 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4)) (.cse33 (select (select |v_#memory_$Pointer$.base_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse34 (+ (select (select |v_#memory_$Pointer$.offset_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse30 (select (select |v_#memory_$Pointer$.base_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse31 (+ (select (select |v_#memory_$Pointer$.offset_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse25 (select (select .cse44 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse26 (+ 40 (select (select .cse24 |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (and (= |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| (store .cse24 .cse25 (store (select .cse24 .cse25) .cse26 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| .cse25) .cse26)))) (= (store .cse27 .cse28 (store (select .cse27 .cse28) .cse29 (select (select |v_#memory_$Pointer$.offset_28| .cse28) .cse29))) |v_#memory_$Pointer$.offset_28|) (not (= |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 0)) (= (store |v_#length_40| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 384) |c_#length|) (= (store |v_#memory_$Pointer$.base_28| .cse30 (store (select |v_#memory_$Pointer$.base_28| .cse30) .cse31 (select (select |v_#memory_$Pointer$.base_29| .cse30) .cse31))) |v_#memory_$Pointer$.base_29|) (= (store .cse32 .cse28 (store (select .cse32 .cse28) .cse29 (select (select |v_#memory_$Pointer$.base_28| .cse28) .cse29))) |v_#memory_$Pointer$.base_28|) (= (store |v_#memory_$Pointer$.base_29| .cse33 (store (select |v_#memory_$Pointer$.base_29| .cse33) .cse34 (select (select |v_#memory_$Pointer$.base_27| .cse33) .cse34))) |v_#memory_$Pointer$.base_27|) (= |c_#valid| (store |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1)) (= |v_#memory_int_40| (store |v_#memory_int_428| .cse35 (store (select |v_#memory_int_428| .cse35) .cse36 (select (select |v_#memory_int_40| .cse35) .cse36)))) (= |v_#memory_int_39| (let ((.cse37 (let ((.cse40 (let ((.cse41 (store |v_#memory_int_40| .cse28 (store (select |v_#memory_int_40| .cse28) .cse29 32)))) (store .cse41 .cse30 (store (select .cse41 .cse30) .cse31 5))))) (store .cse40 .cse33 (store (select .cse40 .cse33) .cse34 8))))) (store .cse37 .cse38 (store (select .cse37 .cse38) .cse39 (select (select |v_#memory_int_39| .cse38) .cse39))))) (let ((.cse42 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse43 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (or (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| .cse42) .cse43) 0)) (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| .cse42) .cse43) 0)))) (= (store |v_#memory_$Pointer$.offset_29| .cse33 (store (select |v_#memory_$Pointer$.offset_29| .cse33) .cse34 (select (select |v_#memory_$Pointer$.offset_27| .cse33) .cse34))) |v_#memory_$Pointer$.offset_27|) (= (store |v_#memory_$Pointer$.offset_28| .cse30 (store (select |v_#memory_$Pointer$.offset_28| .cse30) .cse31 (select (select |v_#memory_$Pointer$.offset_29| .cse30) .cse31))) |v_#memory_$Pointer$.offset_29|) (<= (+ |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1) |c_#StackHeapBarrier|) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| (store .cse44 .cse25 (store (select .cse44 .cse25) .cse26 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| .cse25) .cse26)))) (= (select |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4|) 0)))))))) (<= 0 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~users~0#1.base| |c_ULTIMATE.start_main_~user~0#1.base|)) is different from false [2023-12-02 15:30:22,534 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~count_int_int~0 0) (= |c_ULTIMATE.start_main_~user~0#1.offset| 0) (= |c_ULTIMATE.start_main_~users~0#1.offset| 0) (<= 1 |c_#StackHeapBarrier|) (exists ((|v_#memory_int_429| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_416| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_416| (Array Int (Array Int Int)))) (let ((.cse1 (+ 12 (select (select |v_#memory_$Pointer$.offset_416| |c_ULTIMATE.start_main_~users~0#1.base|) 8))) (.cse0 (select (select |v_#memory_$Pointer$.base_416| |c_ULTIMATE.start_main_~users~0#1.base|) 8))) (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_416| .cse0 (store (select |v_#memory_$Pointer$.offset_416| .cse0) .cse1 (select (select |c_#memory_$Pointer$.offset| .cse0) .cse1)))) (= |c_#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_416| .cse0 (store (select |v_#memory_$Pointer$.base_416| .cse0) .cse1 (select (select |c_#memory_$Pointer$.base| .cse0) .cse1)))) (= (store |v_#memory_int_429| .cse0 (let ((.cse2 (select |v_#memory_int_429| .cse0))) (store .cse2 .cse1 (+ (select .cse2 .cse1) 1)))) |c_#memory_int|)))) (or (and (exists ((|v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_13| Int)) (and (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_13| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_13|))) (exists ((|v_#memory_int_40| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_415| (Array Int (Array Int Int))) (|v_#memory_int_428| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_415| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_28| (Array Int (Array Int Int))) (|v_#valid_71| (Array Int Int)) (|v_#memory_$Pointer$.base_27| (Array Int (Array Int Int))) (|v_#memory_int_39| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_29| (Array Int (Array Int Int))) (|v_#length_40| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_17| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc58#1.base_4| Int) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_28| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_27| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_29| (Array Int (Array Int Int)))) (let ((.cse16 (select (select |v_#memory_$Pointer$.base_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse17 (+ 16 (select (select |v_#memory_$Pointer$.offset_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse19 (select (select |v_#memory_$Pointer$.base_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse20 (select (select |v_#memory_$Pointer$.offset_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (let ((.cse23 (store |v_#memory_$Pointer$.offset_27| .cse19 (store (select |v_#memory_$Pointer$.offset_27| .cse19) .cse20 0))) (.cse5 (store |v_#memory_$Pointer$.base_27| .cse19 (store (select |v_#memory_$Pointer$.base_27| .cse19) .cse20 |v_ULTIMATE.start_main_#t~malloc58#1.base_4|))) (.cse8 (store |v_#memory_$Pointer$.offset_415| .cse16 (store (select |v_#memory_$Pointer$.offset_415| .cse16) .cse17 8))) (.cse13 (store |v_#memory_$Pointer$.base_415| .cse16 (store (select |v_#memory_$Pointer$.base_415| .cse16) .cse17 |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse9 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse10 (+ (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4)) (.cse14 (select (select |v_#memory_$Pointer$.base_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse15 (+ (select (select |v_#memory_$Pointer$.offset_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse11 (select (select |v_#memory_$Pointer$.base_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse12 (+ (select (select |v_#memory_$Pointer$.offset_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse7 (+ 40 (select (select .cse23 |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (and (let ((.cse3 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse4 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (or (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| .cse3) .cse4) 0)) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| .cse3) .cse4) 0)))) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| (store .cse5 .cse6 (store (select .cse5 .cse6) .cse7 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_17| .cse6) .cse7)))) (= (store .cse8 .cse9 (store (select .cse8 .cse9) .cse10 (select (select |v_#memory_$Pointer$.offset_28| .cse9) .cse10))) |v_#memory_$Pointer$.offset_28|) (not (= |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 0)) (= (store |v_#length_40| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 384) |c_#length|) (= (store |v_#memory_$Pointer$.base_28| .cse11 (store (select |v_#memory_$Pointer$.base_28| .cse11) .cse12 (select (select |v_#memory_$Pointer$.base_29| .cse11) .cse12))) |v_#memory_$Pointer$.base_29|) (= (store .cse13 .cse9 (store (select .cse13 .cse9) .cse10 (select (select |v_#memory_$Pointer$.base_28| .cse9) .cse10))) |v_#memory_$Pointer$.base_28|) (= (store |v_#memory_$Pointer$.base_29| .cse14 (store (select |v_#memory_$Pointer$.base_29| .cse14) .cse15 (select (select |v_#memory_$Pointer$.base_27| .cse14) .cse15))) |v_#memory_$Pointer$.base_27|) (= |c_#valid| (store |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1)) (= |v_#memory_int_40| (store |v_#memory_int_428| .cse16 (store (select |v_#memory_int_428| .cse16) .cse17 (select (select |v_#memory_int_40| .cse16) .cse17)))) (= |v_#memory_int_39| (let ((.cse18 (let ((.cse21 (let ((.cse22 (store |v_#memory_int_40| .cse9 (store (select |v_#memory_int_40| .cse9) .cse10 32)))) (store .cse22 .cse11 (store (select .cse22 .cse11) .cse12 5))))) (store .cse21 .cse14 (store (select .cse21 .cse14) .cse15 8))))) (store .cse18 .cse19 (store (select .cse18 .cse19) .cse20 (select (select |v_#memory_int_39| .cse19) .cse20))))) (= (store |v_#memory_$Pointer$.offset_29| .cse14 (store (select |v_#memory_$Pointer$.offset_29| .cse14) .cse15 (select (select |v_#memory_$Pointer$.offset_27| .cse14) .cse15))) |v_#memory_$Pointer$.offset_27|) (= (store |v_#memory_$Pointer$.offset_28| .cse11 (store (select |v_#memory_$Pointer$.offset_28| .cse11) .cse12 (select (select |v_#memory_$Pointer$.offset_29| .cse11) .cse12))) |v_#memory_$Pointer$.offset_29|) (= |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| (store .cse23 .cse6 (store (select .cse23 .cse6) .cse7 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_17| .cse6) .cse7)))) (<= (+ |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1) |c_#StackHeapBarrier|) (= (select |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4|) 0))))))) (and (exists ((|v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_14| Int)) (and (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_14| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_14|))) (exists ((|v_#memory_int_40| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_415| (Array Int (Array Int Int))) (|v_#memory_int_428| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_415| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_28| (Array Int (Array Int Int))) (|v_#valid_71| (Array Int Int)) (|v_#memory_$Pointer$.base_27| (Array Int (Array Int Int))) (|v_#memory_int_39| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_29| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_18| (Array Int (Array Int Int))) (|v_#length_40| (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc58#1.base_4| Int) (|v_#memory_$Pointer$.offset_28| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_27| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_29| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| (Array Int (Array Int Int)))) (let ((.cse35 (select (select |v_#memory_$Pointer$.base_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse36 (+ 16 (select (select |v_#memory_$Pointer$.offset_415| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse38 (select (select |v_#memory_$Pointer$.base_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse39 (select (select |v_#memory_$Pointer$.offset_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (let ((.cse24 (store |v_#memory_$Pointer$.offset_27| .cse38 (store (select |v_#memory_$Pointer$.offset_27| .cse38) .cse39 0))) (.cse44 (store |v_#memory_$Pointer$.base_27| .cse38 (store (select |v_#memory_$Pointer$.base_27| .cse38) .cse39 |v_ULTIMATE.start_main_#t~malloc58#1.base_4|))) (.cse27 (store |v_#memory_$Pointer$.offset_415| .cse35 (store (select |v_#memory_$Pointer$.offset_415| .cse35) .cse36 8))) (.cse32 (store |v_#memory_$Pointer$.base_415| .cse35 (store (select |v_#memory_$Pointer$.base_415| .cse35) .cse36 |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse28 (select (select .cse32 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse29 (+ (select (select .cse27 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4)) (.cse33 (select (select |v_#memory_$Pointer$.base_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse34 (+ (select (select |v_#memory_$Pointer$.offset_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse30 (select (select |v_#memory_$Pointer$.base_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse31 (+ (select (select |v_#memory_$Pointer$.offset_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse25 (select (select .cse44 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse26 (+ 40 (select (select .cse24 |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (and (= |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| (store .cse24 .cse25 (store (select .cse24 .cse25) .cse26 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| .cse25) .cse26)))) (= (store .cse27 .cse28 (store (select .cse27 .cse28) .cse29 (select (select |v_#memory_$Pointer$.offset_28| .cse28) .cse29))) |v_#memory_$Pointer$.offset_28|) (not (= |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 0)) (= (store |v_#length_40| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 384) |c_#length|) (= (store |v_#memory_$Pointer$.base_28| .cse30 (store (select |v_#memory_$Pointer$.base_28| .cse30) .cse31 (select (select |v_#memory_$Pointer$.base_29| .cse30) .cse31))) |v_#memory_$Pointer$.base_29|) (= (store .cse32 .cse28 (store (select .cse32 .cse28) .cse29 (select (select |v_#memory_$Pointer$.base_28| .cse28) .cse29))) |v_#memory_$Pointer$.base_28|) (= (store |v_#memory_$Pointer$.base_29| .cse33 (store (select |v_#memory_$Pointer$.base_29| .cse33) .cse34 (select (select |v_#memory_$Pointer$.base_27| .cse33) .cse34))) |v_#memory_$Pointer$.base_27|) (= |c_#valid| (store |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1)) (= |v_#memory_int_40| (store |v_#memory_int_428| .cse35 (store (select |v_#memory_int_428| .cse35) .cse36 (select (select |v_#memory_int_40| .cse35) .cse36)))) (= |v_#memory_int_39| (let ((.cse37 (let ((.cse40 (let ((.cse41 (store |v_#memory_int_40| .cse28 (store (select |v_#memory_int_40| .cse28) .cse29 32)))) (store .cse41 .cse30 (store (select .cse41 .cse30) .cse31 5))))) (store .cse40 .cse33 (store (select .cse40 .cse33) .cse34 8))))) (store .cse37 .cse38 (store (select .cse37 .cse38) .cse39 (select (select |v_#memory_int_39| .cse38) .cse39))))) (let ((.cse42 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse43 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (or (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| .cse42) .cse43) 0)) (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_18| .cse42) .cse43) 0)))) (= (store |v_#memory_$Pointer$.offset_29| .cse33 (store (select |v_#memory_$Pointer$.offset_29| .cse33) .cse34 (select (select |v_#memory_$Pointer$.offset_27| .cse33) .cse34))) |v_#memory_$Pointer$.offset_27|) (= (store |v_#memory_$Pointer$.offset_28| .cse30 (store (select |v_#memory_$Pointer$.offset_28| .cse30) .cse31 (select (select |v_#memory_$Pointer$.offset_29| .cse30) .cse31))) |v_#memory_$Pointer$.offset_29|) (<= (+ |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1) |c_#StackHeapBarrier|) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| (store .cse44 .cse25 (store (select .cse44 .cse25) .cse26 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_18| .cse25) .cse26)))) (= (select |v_#valid_71| |v_ULTIMATE.start_main_#t~malloc58#1.base_4|) 0)))))))) (<= 0 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~users~0#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) (let ((.cse49 (mod (+ (select (select |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~users~0#1.base|) 8)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~users~0#1.base|) 8) 4)) 4294967295) 4294967296)) (.cse50 (mod |c_ULTIMATE.start_main_~_ha_hashv~0#1| 4294967296))) (let ((.cse45 (= .cse50 0)) (.cse46 (= .cse49 0))) (or (and (= |c_ULTIMATE.start_main_~_ha_bkt~0#1| 0) (or .cse45 .cse46)) (and (not .cse45) (let ((.cse47 (= .cse49 .cse50))) (or (and (= |c_ULTIMATE.start_main_~_ha_bkt~0#1| |c_ULTIMATE.start_main_~_ha_hashv~0#1|) .cse47) (let ((.cse48 (mod |c_ULTIMATE.start_main_~_ha_bkt~0#1| 4294967296))) (and (not .cse47) (<= .cse48 .cse49) (<= .cse48 .cse50))))) (not .cse46)))))) is different from false [2023-12-02 15:30:40,220 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2221#(and (<= 1 |#StackHeapBarrier|) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (exists ((|v_ULTIMATE.start_main_~users~0#1.base_BEFORE_CALL_16| Int)) (and (or (not (= (select (select |#memory_int| |v_ULTIMATE.start_main_~users~0#1.base_BEFORE_CALL_16|) 4) 0)) (not (= (select (select |#memory_int| |v_ULTIMATE.start_main_~users~0#1.base_BEFORE_CALL_16|) 0) 0))) (not (= |v_ULTIMATE.start_main_~users~0#1.base_BEFORE_CALL_16| 0)))) (= ~count_int_int~0 1))' at error location [2023-12-02 15:30:40,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:30:40,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:30:40,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-02 15:30:40,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392578600] [2023-12-02 15:30:40,221 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 15:30:40,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:30:40,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:30:40,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:30:40,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=728, Unknown=43, NotChecked=174, Total=1056 [2023-12-02 15:30:40,223 INFO L87 Difference]: Start difference. First operand 101 states and 130 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:30:42,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:44,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:46,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:48,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:50,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:52,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:54,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:56,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:58,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:00,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:02,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:04,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:06,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:08,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:10,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:12,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:14,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:16,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:18,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:21,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:31:23,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:31:25,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:31:25,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:31:25,914 INFO L93 Difference]: Finished difference Result 266 states and 338 transitions. [2023-12-02 15:31:25,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:31:25,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2023-12-02 15:31:25,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:31:25,917 INFO L225 Difference]: With dead ends: 266 [2023-12-02 15:31:25,917 INFO L226 Difference]: Without dead ends: 238 [2023-12-02 15:31:25,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 177.6s TimeCoverageRelationStatistics Valid=111, Invalid=728, Unknown=43, NotChecked=174, Total=1056 [2023-12-02 15:31:25,919 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 153 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:31:25,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 406 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 19 Unknown, 0 Unchecked, 45.6s Time] [2023-12-02 15:31:25,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-02 15:31:25,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-02 15:31:25,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 213 states have (on average 1.1455399061032865) internal successors, (244), 222 states have internal predecessors, (244), 22 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-02 15:31:25,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 288 transitions. [2023-12-02 15:31:25,951 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 288 transitions. Word has length 49 [2023-12-02 15:31:25,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:31:25,952 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 288 transitions. [2023-12-02 15:31:25,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:31:25,952 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 288 transitions. [2023-12-02 15:31:25,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-02 15:31:25,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:31:25,962 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:31:25,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 15:31:26,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:31:26,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:31:26,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:31:26,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1799086160, now seen corresponding path program 1 times [2023-12-02 15:31:26,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:31:26,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496026503] [2023-12-02 15:31:26,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:31:26,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:31:26,361 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:31:26,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [175811782] [2023-12-02 15:31:26,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:31:26,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:31:26,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:31:26,363 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:31:26,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:31:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:31:27,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:31:27,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:31:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 15:31:27,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:31:27,646 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 15:31:27,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:31:27,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496026503] [2023-12-02 15:31:27,646 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:31:27,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175811782] [2023-12-02 15:31:27,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175811782] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:31:27,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [720375613] [2023-12-02 15:31:27,651 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2023-12-02 15:31:27,651 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:31:27,651 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:31:27,651 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:31:27,652 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:31:46,214 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 28 for LOIs [2023-12-02 15:31:46,225 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 206 for LOIs [2023-12-02 15:31:46,751 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:32:02,646 WARN L293 SmtUtils]: Spent 10.62s on a formula simplification. DAG size of input: 206 DAG size of output: 203 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:32:16,411 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~count_int_int~0 0) (let ((.cse21 (= |c_ULTIMATE.start_main_#t~mem64#1.base| |c_ULTIMATE.start_main_#t~memset~res65#1.base|)) (.cse22 (= |c_ULTIMATE.start_main_#t~memset~res65#1.offset| |c_ULTIMATE.start_main_#t~mem64#1.offset|))) (or (and (exists ((|v_#memory_int_40| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_539| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_539| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_32| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_28| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_27| (Array Int (Array Int Int))) (|v_#valid_92| (Array Int Int)) (|v_#memory_int_39| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_29| (Array Int (Array Int Int))) (|v_#length_61| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_32| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc58#1.base_4| Int) (|v_#memory_$Pointer$.offset_28| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_27| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_29| (Array Int (Array Int Int))) (|v_#memory_int_570| (Array Int (Array Int Int)))) (let ((.cse17 (select (select |v_#memory_$Pointer$.base_539| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse18 (+ 16 (select (select |v_#memory_$Pointer$.offset_539| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse9 (select (select |v_#memory_$Pointer$.base_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse10 (select (select |v_#memory_$Pointer$.offset_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (let ((.cse20 (store |v_#memory_$Pointer$.offset_27| .cse9 (store (select |v_#memory_$Pointer$.offset_27| .cse9) .cse10 0))) (.cse0 (store |v_#memory_$Pointer$.base_27| .cse9 (store (select |v_#memory_$Pointer$.base_27| .cse9) .cse10 |v_ULTIMATE.start_main_#t~malloc58#1.base_4|))) (.cse3 (store |v_#memory_$Pointer$.offset_539| .cse17 (store (select |v_#memory_$Pointer$.offset_539| .cse17) .cse18 8))) (.cse19 (store |v_#memory_$Pointer$.base_539| .cse17 (store (select |v_#memory_$Pointer$.base_539| .cse17) .cse18 |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse4 (select (select .cse19 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse5 (+ (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4)) (.cse6 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_32| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse2 (+ 40 (select (select .cse20 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse12 (select (select |v_#memory_$Pointer$.base_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse13 (+ (select (select |v_#memory_$Pointer$.offset_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse15 (select (select |v_#memory_$Pointer$.base_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse16 (+ (select (select |v_#memory_$Pointer$.offset_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse7 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_32| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (and (= (store .cse0 .cse1 (store (select .cse0 .cse1) .cse2 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_32| .cse1) .cse2))) |v_old(#memory_$Pointer$.base)_AFTER_CALL_32|) (= (store .cse3 .cse4 (store (select .cse3 .cse4) .cse5 (select (select |v_#memory_$Pointer$.offset_28| .cse4) .cse5))) |v_#memory_$Pointer$.offset_28|) (or (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_32| .cse6) .cse7) 0)) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_32| .cse6) .cse7) 0))) (= |v_#memory_int_39| (let ((.cse8 (let ((.cse11 (let ((.cse14 (store |v_#memory_int_40| .cse4 (store (select |v_#memory_int_40| .cse4) .cse5 32)))) (store .cse14 .cse15 (store (select .cse14 .cse15) .cse16 5))))) (store .cse11 .cse12 (store (select .cse11 .cse12) .cse13 8))))) (store .cse8 .cse9 (store (select .cse8 .cse9) .cse10 (select (select |v_#memory_int_39| .cse9) .cse10))))) (= (select |v_#valid_92| |v_ULTIMATE.start_main_#t~malloc58#1.base_4|) 0) (= (store |v_#memory_int_570| .cse17 (store (select |v_#memory_int_570| .cse17) .cse18 (select (select |v_#memory_int_40| .cse17) .cse18))) |v_#memory_int_40|) (not (= |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 0)) (= (store .cse19 .cse4 (store (select .cse19 .cse4) .cse5 (select (select |v_#memory_$Pointer$.base_28| .cse4) .cse5))) |v_#memory_$Pointer$.base_28|) (= (store |v_#memory_$Pointer$.base_28| .cse15 (store (select |v_#memory_$Pointer$.base_28| .cse15) .cse16 (select (select |v_#memory_$Pointer$.base_29| .cse15) .cse16))) |v_#memory_$Pointer$.base_29|) (= (store |v_#memory_$Pointer$.base_29| .cse12 (store (select |v_#memory_$Pointer$.base_29| .cse12) .cse13 (select (select |v_#memory_$Pointer$.base_27| .cse12) .cse13))) |v_#memory_$Pointer$.base_27|) (= |c_ULTIMATE.start_main_#t~mem63#1.base| .cse6) (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_32| |c_ULTIMATE.start_main_#t~mem63#1.base|) |c_ULTIMATE.start_main_#t~mem63#1.offset|) |c_ULTIMATE.start_main_#t~mem64#1.offset|) (= |v_old(#memory_$Pointer$.offset)_AFTER_CALL_32| (store .cse20 .cse1 (store (select .cse20 .cse1) .cse2 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_32| .cse1) .cse2)))) (= (store |v_#memory_$Pointer$.offset_29| .cse12 (store (select |v_#memory_$Pointer$.offset_29| .cse12) .cse13 (select (select |v_#memory_$Pointer$.offset_27| .cse12) .cse13))) |v_#memory_$Pointer$.offset_27|) (= (store |v_#memory_$Pointer$.offset_28| .cse15 (store (select |v_#memory_$Pointer$.offset_28| .cse15) .cse16 (select (select |v_#memory_$Pointer$.offset_29| .cse15) .cse16))) |v_#memory_$Pointer$.offset_29|) (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_32| |c_ULTIMATE.start_main_#t~mem63#1.base|) |c_ULTIMATE.start_main_#t~mem63#1.offset|) |c_ULTIMATE.start_main_#t~mem64#1.base|) (= (store |v_#length_61| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 384) |c_#length|) (= |c_ULTIMATE.start_main_#t~mem63#1.offset| .cse7) (<= (+ |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1) |c_#StackHeapBarrier|) (= |c_#valid| (store |v_#valid_92| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_26| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_26|) (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_26| 4294967296)))) .cse21 .cse22) (and (exists ((|v_#memory_int_40| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_31| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_539| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_539| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_28| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_27| (Array Int (Array Int Int))) (|v_#valid_92| (Array Int Int)) (|v_#memory_int_39| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_29| (Array Int (Array Int Int))) (|v_#length_61| (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc58#1.base_4| Int) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_31| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_28| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_27| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_29| (Array Int (Array Int Int))) (|v_#memory_int_570| (Array Int (Array Int Int)))) (let ((.cse40 (select (select |v_#memory_$Pointer$.base_539| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse41 (+ 16 (select (select |v_#memory_$Pointer$.offset_539| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse32 (select (select |v_#memory_$Pointer$.base_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse33 (select (select |v_#memory_$Pointer$.offset_27| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (let ((.cse25 (store |v_#memory_$Pointer$.offset_27| .cse32 (store (select |v_#memory_$Pointer$.offset_27| .cse32) .cse33 0))) (.cse43 (store |v_#memory_$Pointer$.base_27| .cse32 (store (select |v_#memory_$Pointer$.base_27| .cse32) .cse33 |v_ULTIMATE.start_main_#t~malloc58#1.base_4|))) (.cse28 (store |v_#memory_$Pointer$.offset_539| .cse40 (store (select |v_#memory_$Pointer$.offset_539| .cse40) .cse41 8))) (.cse42 (store |v_#memory_$Pointer$.base_539| .cse40 (store (select |v_#memory_$Pointer$.base_539| .cse40) .cse41 |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse29 (select (select .cse42 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse30 (+ (select (select .cse28 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4)) (.cse23 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_31| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse24 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_31| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse35 (select (select |v_#memory_$Pointer$.base_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse36 (+ (select (select |v_#memory_$Pointer$.offset_29| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse26 (select (select .cse43 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse27 (+ 40 (select (select .cse25 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse38 (select (select |v_#memory_$Pointer$.base_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse39 (+ (select (select |v_#memory_$Pointer$.offset_28| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8))) (and (or (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_31| .cse23) .cse24) 0)) (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_31| .cse23) .cse24) 0))) (= |v_old(#memory_$Pointer$.offset)_AFTER_CALL_31| (store .cse25 .cse26 (store (select .cse25 .cse26) .cse27 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_31| .cse26) .cse27)))) (= (store .cse28 .cse29 (store (select .cse28 .cse29) .cse30 (select (select |v_#memory_$Pointer$.offset_28| .cse29) .cse30))) |v_#memory_$Pointer$.offset_28|) (= |v_#memory_int_39| (let ((.cse31 (let ((.cse34 (let ((.cse37 (store |v_#memory_int_40| .cse29 (store (select |v_#memory_int_40| .cse29) .cse30 32)))) (store .cse37 .cse38 (store (select .cse37 .cse38) .cse39 5))))) (store .cse34 .cse35 (store (select .cse34 .cse35) .cse36 8))))) (store .cse31 .cse32 (store (select .cse31 .cse32) .cse33 (select (select |v_#memory_int_39| .cse32) .cse33))))) (= (select |v_#valid_92| |v_ULTIMATE.start_main_#t~malloc58#1.base_4|) 0) (= (store |v_#memory_int_570| .cse40 (store (select |v_#memory_int_570| .cse40) .cse41 (select (select |v_#memory_int_40| .cse40) .cse41))) |v_#memory_int_40|) (not (= |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 0)) (= (store .cse42 .cse29 (store (select .cse42 .cse29) .cse30 (select (select |v_#memory_$Pointer$.base_28| .cse29) .cse30))) |v_#memory_$Pointer$.base_28|) (= (store |v_#memory_$Pointer$.base_28| .cse38 (store (select |v_#memory_$Pointer$.base_28| .cse38) .cse39 (select (select |v_#memory_$Pointer$.base_29| .cse38) .cse39))) |v_#memory_$Pointer$.base_29|) (= (store |v_#memory_$Pointer$.base_29| .cse35 (store (select |v_#memory_$Pointer$.base_29| .cse35) .cse36 (select (select |v_#memory_$Pointer$.base_27| .cse35) .cse36))) |v_#memory_$Pointer$.base_27|) (= |c_ULTIMATE.start_main_#t~mem63#1.base| .cse23) (= |c_ULTIMATE.start_main_#t~mem63#1.offset| .cse24) (= (store |v_#memory_$Pointer$.offset_29| .cse35 (store (select |v_#memory_$Pointer$.offset_29| .cse35) .cse36 (select (select |v_#memory_$Pointer$.offset_27| .cse35) .cse36))) |v_#memory_$Pointer$.offset_27|) (= (store .cse43 .cse26 (store (select .cse43 .cse26) .cse27 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_31| .cse26) .cse27))) |v_old(#memory_$Pointer$.base)_AFTER_CALL_31|) (= (store |v_#memory_$Pointer$.offset_28| .cse38 (store (select |v_#memory_$Pointer$.offset_28| .cse38) .cse39 (select (select |v_#memory_$Pointer$.offset_29| .cse38) .cse39))) |v_#memory_$Pointer$.offset_29|) (= (store |v_#length_61| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 384) |c_#length|) (= |c_ULTIMATE.start_main_#t~mem64#1.base| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_31| |c_ULTIMATE.start_main_#t~mem63#1.base|) |c_ULTIMATE.start_main_#t~mem63#1.offset|)) (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_31| |c_ULTIMATE.start_main_#t~mem63#1.base|) |c_ULTIMATE.start_main_#t~mem63#1.offset|) |c_ULTIMATE.start_main_#t~mem64#1.offset|) (<= (+ |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1) |c_#StackHeapBarrier|) (= |c_#valid| (store |v_#valid_92| |v_ULTIMATE.start_main_#t~malloc58#1.base_4| 1))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_25| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_25|) (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_25| 4294967296)))) .cse21 .cse22))) (= |c_ULTIMATE.start_main_~user~0#1.offset| 0) (= |c_ULTIMATE.start_main_~users~0#1.offset| 0) (<= 1 |c_#StackHeapBarrier|) (<= 0 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~users~0#1.base| 0)) is different from false [2023-12-02 15:33:25,345 WARN L293 SmtUtils]: Spent 31.60s on a formula simplification that was a NOOP. DAG size: 220 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:33:44,902 WARN L293 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 206 DAG size of output: 206 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:34:27,976 WARN L293 SmtUtils]: Spent 18.50s on a formula simplification. DAG size of input: 175 DAG size of output: 162 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:34:38,434 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3740#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~users~0#1.base_BEFORE_CALL_31| Int)) (and (not (= |v_ULTIMATE.start_main_~users~0#1.base_BEFORE_CALL_31| 0)) (or (not (= (select (select |#memory_int| |v_ULTIMATE.start_main_~users~0#1.base_BEFORE_CALL_31|) 0) 0)) (not (= 0 (select (select |#memory_int| |v_ULTIMATE.start_main_~users~0#1.base_BEFORE_CALL_31|) 4)))))) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (= ~count_int_int~0 1))' at error location [2023-12-02 15:34:38,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:34:38,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:34:38,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-02 15:34:38,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297630739] [2023-12-02 15:34:38,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 15:34:38,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 15:34:38,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:34:38,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 15:34:38,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1271, Unknown=44, NotChecked=74, Total=1560 [2023-12-02 15:34:38,438 INFO L87 Difference]: Start difference. First operand 238 states and 288 transitions. Second operand has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 12 states have internal predecessors, (238), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:34:40,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:42,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:44,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:46,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:48,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:50,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:52,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:54,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:56,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:58,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:00,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:02,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:04,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:06,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:08,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:11,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:13,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:15,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:17,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:19,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:21,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:23,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:25,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:27,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:29,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:31,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:33,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:35,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:37,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:39,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:41,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:43,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:45,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:47,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:49,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:51,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:53,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:55,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:57,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:59,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:01,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:03,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:05,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:07,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:09,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:11,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:13,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:15,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:17,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:19,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:21,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:23,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:25,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:27,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:29,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:32,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:34,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:36,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:38,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:40,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:42,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:44,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:46,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:48,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:50,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:52,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:54,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:56,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:58,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:00,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:02,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:04,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:06,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:08,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:10,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:12,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:14,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:16,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:18,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:20,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:22,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:24,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:26,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:28,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:30,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:32,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:34,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:36,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:38,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:40,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:42,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:44,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:46,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:48,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:50,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:52,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:54,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:56,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:37:58,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:38:00,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:38:02,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:38:04,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:38:06,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:38:08,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:38:10,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:38:12,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:38:14,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:38:16,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:38:18,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:38:22,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:38:23,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:38:26,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:38:28,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:38:30,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:38:30,271 INFO L93 Difference]: Finished difference Result 578 states and 701 transitions. [2023-12-02 15:38:30,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 15:38:30,272 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 12 states have internal predecessors, (238), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 130 [2023-12-02 15:38:30,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:38:30,276 INFO L225 Difference]: With dead ends: 578 [2023-12-02 15:38:30,276 INFO L226 Difference]: Without dead ends: 550 [2023-12-02 15:38:30,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 346 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 171.7s TimeCoverageRelationStatistics Valid=171, Invalid=1271, Unknown=44, NotChecked=74, Total=1560 [2023-12-02 15:38:30,278 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 417 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 9 mSolverCounterUnsat, 109 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 230.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 109 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 231.7s IncrementalHoareTripleChecker+Time [2023-12-02 15:38:30,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 722 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 169 Invalid, 109 Unknown, 0 Unchecked, 231.7s Time] [2023-12-02 15:38:30,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-12-02 15:38:30,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2023-12-02 15:38:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 507 states have (on average 1.1203155818540433) internal successors, (568), 516 states have internal predecessors, (568), 40 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (40), 31 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 15:38:30,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 648 transitions. [2023-12-02 15:38:30,316 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 648 transitions. Word has length 130 [2023-12-02 15:38:30,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:38:30,317 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 648 transitions. [2023-12-02 15:38:30,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 12 states have internal predecessors, (238), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:38:30,317 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 648 transitions. [2023-12-02 15:38:30,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-12-02 15:38:30,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:38:30,322 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:38:30,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 15:38:30,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:38:30,523 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:38:30,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:38:30,524 INFO L85 PathProgramCache]: Analyzing trace with hash -452840624, now seen corresponding path program 2 times [2023-12-02 15:38:30,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:38:30,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612391616] [2023-12-02 15:38:30,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:38:30,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:38:30,924 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:38:30,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502708975] [2023-12-02 15:38:30,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 15:38:30,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:38:30,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:38:30,926 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:38:30,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23243e32-60d7-4b51-98c7-24b183746354/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process